Bunn ITB User Manual

ITB/ITCB  
ICB/TWIN  
Infusion Series®  
PROGRAMMING MANUAL  
BUNN-O-MATIC CORPORATION  
POST OFFICE BOX 3227  
SPRINGFIELD, ILLINOIS 62708-3227  
PHONE: (217) 529-6601 FAX: (217) 529-6644  
41581.0002A 09/09 ©2009 Bunn-O-Matic Corporation  
INTRODUCTION  
ITB  
This equipment will brew tea into an awaiting dispenser or reservoir. It is only for indoor use on a sturdy counter or  
shelf.  
The ITB uses recipe settings to brew tea. It has an LCD for digital readout and programming. The user is able to select  
regular or quick brew for tea programming. Other features include Pre-Infusion and Pulse Brew, quick and standard brew,  
Energy Savings mode, BUNNLink compatible, Freshness Timer, Sanitation Alert, and brew counters. Available in low profile,  
dual dilution and sweetener models.  
ITCB  
This equipment will brew either tea or coffee into an awaiting dispenser or reservoir. It can be easily configured for  
120V 15 amp, 120/208V 20 amp or 120/240V 20 amp. The brewer may have an auxiliary hot water faucet. It is only for  
indoor use on a sturdy counter or shelf.  
The Infusion Series combines BrewWISE, CDBC and Tea Brewers into one. ITCB is able to brew both tea and coffee  
with recipe settings. It has an LCD for digital readout and programming along with the Smart Funnel options for coffee. The  
user is able to select regular or quick brew for tea programming. Other features include: Pre-Infusion, Pulse Brew, quick  
and standard brew, and BrewWISE, Energy Savings mode, BUNNLink compatible, Smart Reader compatible, Freshness  
Timer, Sanitation Alert, and sweetener with low product detection.  
CONTENTS  
Warranty .............................................................................................................2  
Introduction ........................................................................................................3  
Programming Flow Chart-ICB.............................................................................4  
Programming Flow Chart-ICB Twin.....................................................................5  
Programming Flow Chart-ITB .............................................................................6  
Programming Flow Chart-ITCB...........................................................................7  
Factory Defaults..................................................................................................8  
Programming With Recipe Card .........................................................................9  
Programming With Ad Card..............................................................................10  
Programming....................................................................................................11  
Troubleshooting................................................................................................29  
41581.2 091609  
Page 3  
PROGRAMMING THE BREWER  
ICB  
PROGRAMMING FUNCTIONS - FLOW CHART  
BREW LOCKOUT?  
NO DONE YES  
PROGRAMMING FUNCTIONS - LEVEL I  
PROGRAMMING FUNCTIONS - LEVEL 2  
SET LANGUAGE?  
NO YES  
UNITS  
REVIEW RECIPES  
NO YES  
ASSIGN RECIPE  
METRIC DONE ENG  
NO  
YES  
SET NEW RECIPE?  
NO YES  
SET TEMP 200°  
READY DEGREE 5°  
(-) DONE (+)  
ENABLE ADS?  
NO DONE YES  
(-)  
DONE  
(+)  
ENABLE SANITATION  
NO DONE YES  
ENABL ENERGYSAVR  
NO DONE YES  
ENABLE FRESH TIMER  
NO DONE YES  
XX  
(-)  
REFILL  
DONE  
XXX  
(+)  
SPRAY OZ/M: XX.X  
(-) DONE (+)  
CALIBRATE FLOW?  
NO YES  
BREW COUNTERS?  
NO YES  
BYPASS OZ/M: XX.X  
(-) DONE (+)  
ENTER SERVICE #  
NO YES  
ENTER ASSET #  
NO YES  
SERVICE TOOLS  
NO YES  
FACTORY DEFAULTS  
NO  
YES  
41581.2 091609  
Page 4  
PROGRAMMING THE BREWER (cont.)  
ICB TWIN  
PROGRAMMING FUNCTIONS - FLOW CHART  
BREW LOCKOUT?  
NO DONE YES  
PROGRAMMING FUNCTIONS - LEVEL I  
PROGRAMMING FUNCTIONS - LEVEL 2  
SET LANGUAGE?  
NO YES  
UNITS  
REVIEW RECIPES  
NO YES  
ASSIGN RECIPE  
METRIC DONE ENG  
NO  
YES  
SET NEW RECIPE?  
NO YES  
SET TEMP 200°  
READY DEGREE 5°  
(-) DONE (+)  
ENABLE ADS?  
(-)  
DONE  
(+)  
NO  
DONE YES  
ENABLE SANITATION  
NO DONE YES  
ENABL ENERGYSAVR  
NO DONE YES  
ENABLE FRESH TIMER  
NO DONE YES  
XX  
(-)  
REFILL  
DONE  
XXX  
(+)  
L SPRY OZ/M: XX.X  
(-) DONE (+)  
R SPRY OZ/M: XX.X  
(-) DONE (+)  
L BYPS OZ/M: XX.X  
(-) DONE (+)  
R BYPS OZ/M: XX.X  
(-) DONE (+)  
ENTER SERVICE #  
ENTER ASSET #  
NO YES  
CALIBRATE FLOW?  
BREW COUNTERS?  
NO YES  
NO  
YES  
NO  
YES  
FACTORY DEFAULTS  
NO YES  
SERVICE TOOLS  
NO  
YES  
41581.2 091609  
Page 5  
ITB  
PROGRAMMING FUNCTIONS - FLOW CHART  
PROGRAMMING FUNCTIONS - LEVEL I  
BREW LOCKOUT?  
NO DONE YES  
PROGRAMMING FUNCTIONS - LEVEL 2  
SET LANGUAGE?  
NO YES  
UNITS  
REVIEW RECIPES  
ASSIGN RECIPE  
METRIC DONE ENG  
NO  
YES  
NO  
YES  
ENABLE SANITATION  
NO DONE YES  
MASTER TEMP 205°  
(-) DONE (+)  
READY DEGREE 5°  
ENABLE ADS?  
(-)  
DONE  
(+)  
NO  
DONE YES  
SPRAY OZ/M: XX.X  
(-) DONE (+)  
ENABL ENERGYSAVR  
NO DONE YES  
ENABLE FRESH TIMER  
NO DONE YES  
XX  
(-)  
REFILL  
DONE  
XXX  
(+)  
CALIBRATE FLOW?  
NO YES  
BREW COUNTERS?  
NO YES  
ENTER ASSET #  
NO YES  
DILUTE OZ/M: XX.X  
(-) DONE (+)  
ENTER SERVICE #  
NO YES  
FACTORY DEFAULTS  
NO YES  
SERVICE TOOLS  
NO YES  
41581.2 091609  
Page 6  
ITCB  
PROGRAMMING FUNCTIONS - FLOW CHART  
PROGRAMMING FUNCTIONS - LEVEL I  
BREW LOCKOUT?  
NO DONE YES  
PROGRAMMING FUNCTIONS - LEVEL 2  
SET LANGUAGE?  
NO YES  
UNITS  
REVIEW RECIPES  
NO YES  
ASSIGN RECIPE  
METRIC DONE ENG  
NO  
YES  
SET NEW RECIPE?  
NO YES  
MASTER TEMP 205°  
READY DEGREE 5°  
(-) DONE (+)  
ENABLE ADS?  
NO DONE YES  
(-)  
DONE  
(+)  
ENABLE SANITATION  
NO DONE YES  
ENABL ENERGYSAVR  
NO DONE YES  
ENABLE FRESH TIMER  
NO DONE YES  
XX  
(-)  
REFILL  
DONE  
XXX  
(+)  
SPRAY OZ/M: XX.X  
(-) DONE (+)  
CALIBRATE FLOW?  
NO YES  
BREW COUNTERS?  
NO YES  
DILUTE OZ/M: XX.X  
(-) DONE (+)  
ENTER SERVICE #  
NO YES  
ENTER ASSET #  
NO YES  
SET RECIPES TEMPS  
NO YES  
SERVICE TOOLS  
NO YES  
FACTORY DEFAULTS  
NO YES  
41581.2 091609  
Page 7  
FACTORY DEFAULTS  
ICB  
ICB Twin  
ITCB  
ITB  
Brew Lockout  
Set Language  
Units  
Enabled  
Enabled  
English  
English  
Disabled  
Disabled  
English  
English  
English  
English  
English  
English  
Review Recipes  
Assign Recipes  
Set New Recipe  
Set (Master) Temp  
Ready Degree  
Enable Ads  
205°  
5°  
X
200°  
200°  
5°  
205°  
5°  
5°  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
155  
Disabled  
Disabled  
Disabled  
Disabled  
155  
Disabled  
Enable Sanitation  
Enable Energy Saver  
Enable Fresh Timer  
Refill  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
155  
155  
Left Spray Oz.  
Right Spray Oz.  
Spray Oz.  
X
X
35.0  
35.5  
X
X
X
X
X
36.0  
X
24.0  
X
24.0  
X
Left Bypass Oz.  
Right Bypass Oz.  
Bypass  
30.0  
35.5  
X
X
X
X
31.0  
X
X
X
Dilution Oz.  
X
71.0  
Reset  
71.0  
Reset  
X
Calibrate Flow  
Set Recipes Temps  
Reset  
X
Reset  
X
Coffee 200°  
Tea 205°  
41581.2 091609  
Page 8  
PROGRAMMING WITH RECIPE CARD  
NOT AVAILABLE ON ITB  
Using a RECIPE CARD to load recipes:  
The RECIPE CARD includes all the information needed  
to set up that particular coffee/tea name. The informa-  
tion from the RECIPE CARD is loaded into the brewer’s  
memory by holding the chip area up to the brewer’s  
SENSING COIL. This information can include all the  
recipe settings for that particular name. These can all  
be loaded in seconds.  
READY TO BREW  
WATER TEMP XXX°  
POSITION CARD UNDER  
SENSOR COIL  
CARD CONTAINS  
RECIPE FOR  
NOTE: Instructions to program the brewer and grinder  
are printed on the RECIPE CARD, along with the coffee  
name that is being programmed.  
5 SEC.  
(RECIPE NAME)  
Procedure to program the coffee name:  
1. Remove the funnel(s) if present.  
SHOW QUIT SAVE  
2. Position the RECIPE CARD vertically, so that the  
top end of the CHIP is beneath the (Left on Twins)  
SENSING COIL (located on the underneath side of  
the front display panel).  
3. After a short pause the display will read CARD  
CONTAINSRECIPEFORthenwillchangeto(RECIPE  
NAME)SHOW-QUIT-SAVE. Allbrewingparameters  
for that recipe are now transferred from the CARD  
to the brewer.  
SCROLLS THROUGH  
ALL BREW SETTINGS  
FOR THAT RECIPE  
(RECIPE NAME)  
SETUP COMPLETE  
(RECIPE NAME)  
NOT SAVED  
4. To show (view) this information, press and release  
SHOW. The display will scroll through all of the  
brew settings for that recipe. This display will then  
return to CARD CONTAINS RECIPE FOR then will  
change to (RECIPE NAME) SHOW-QUIT-SAVE.  
5. Ifallbrewsettingsarecorrect, pressSAVE. Thedis-  
play will read (RECIPE NAME) SETUP COMPLETE.  
All brew settings for that name are now stored in  
the brewer’s memory.  
READY TO BREW  
WATER TEMP 200°  
6. If the brewing information is not correct, or it is  
desired to exit the setup before the settings are  
loaded into the brewer’s memory, press QUIT. The  
display will read (RECIPE NAME) NOT SAVED. The  
display will then return to the MAIN SCREEN.  
41581.2 091609  
Page 9  
PROGRAMMING WITH AD CARD  
NOT AVAILABLE ON ITB  
Using an AD CARD to load ADS:  
The information is loaded into the brewer’s memory  
by holding the chip area up to the brewer’s SENSING  
COIL.  
NOTE: Instructions to program the brewer are printed  
on the AD CARD.  
Procedure to program the AD:  
1. Remove the funnel(s) if present.  
2. Position the RECIPE CARD vertically, so that the  
top end of the CHIP is beneath the (Left on Twins)  
SENSING COIL (located on the underneath side of  
the front display panel).  
3. After a short pause the display will read CARD  
CONTAIN ADS/SHOW-QUIT-SAVE.  
4. To show (view) this information, select "SHOW".  
The display will scroll through all of the ad on that  
chip. ThedisplaywillthenreturntoCARDCONTAIN  
ADS/SHOW-QUIT-SAVE.  
READY TO BREW  
WATER TEMP XXX°  
POSITION CARD UNDER  
SENSOR COIL  
5. If message is correct, press SAVE. The display will  
read AD MESSSAGE SETUP COMPLETE. The ad is  
now stored in the brewer’s memory.  
6. If the ad is not correct, or it is desired to exit the  
setup before the ad is loaded into the brewer’s  
memory, press QUIT. The display will then return  
to the MAIN SCREEN.  
CARD CONTAIN ADS  
SHOW QUIT SAVE  
SCROLLS THROUGH  
AD MESSAGE  
SETUP COMPLETE  
COMPLETE MESSAGE  
READY TO BREW  
WATER TEMP 200°  
NOTE: ENABLE ADS must be  
turned on in LEVEL 2 in order  
for the newly programmed ad  
message to be displayed.  
41581.2 091609  
Page 10  
PROGRAMMING THE BREWER  
PROGRAMMING FUNCTIONS - LEVEL 1  
* BREW LOCKOUT  
This function allows the operator to prevent or allow brewing if the water temperature is less than the set READY  
temperature.  
Procedure for setting Brew Lockout:  
1. To access this function screen press and hold the right hidden button. Release when the display reads:  
BREW LOCKOUT?  
NO DONE YES  
Press here Press here Press here  
for NO  
for DONE  
for YES  
2. The YES or NO should be flashing. Select YES to prevent brewing if the water temperature is below the set  
READY temperature. Select NO to permit brewing at any water temperature.  
3. When finished, select DONE. This will exit this function screen and return to the MAIN SCREEN.  
PROGRAMMING FUNCTIONS - LEVEL 2  
The functions in the second level of programming allow the operator to adjust brew settings and other feature  
options.  
To access the level 2 function screens press and hold the right hidden button for approximately 5 seconds.  
Release when the display reads:  
* SET LANGUAGE  
This function allows the operator to select the language used for the display.  
Procedure for setting Language:  
1. Press and hold the right hidden button until the display reads SET LANGUAGE? and release.  
2. Press YES to proceed. The display should now read ENGLISH. Using (-) and (+), scroll through the available  
languages until the desired language is shown on the display.  
3. When finished, press SELECT. If the language selected is different from the current settings,the display will  
read CHANGE LANGUAGE? ARE YOU SURE? and then will change to CHANGE LANGUAGE? To convert the  
display to the new language, select YES. To retain the current language, select NO.  
4. The display should now read UNITS. To exit programming and return to the MAIN SCREEN, press ENABLE  
BREW ON/OFF switch.  
(cont.)  
41581.2 091609  
Page 11  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* UNITS  
This function allows the operator to select if numeric settings are displayed in English or Metric units.  
Procedure for setting the Units:  
1. Press and hold the right hidden button until the display reads SET LANGUAGE? Press and release the right  
hidden button until the display reads UNITS. The METRIC or ENG should be flashing.  
2. Select METRIC to have settings displayed in Metric units. Select ENG for English units.  
NOTE: Changing the UNIT settings will restore ALL settings to Factory Default.  
3. Select DONE to advance to the next programming screen. To exit programming and return to the Main Screen,  
press ENABLE BREW ON/OFF switch.  
NOTE: This manual is written based on Factory Default Settings (English Units). If brewer is set for Metric Units,  
displays will be different (ex: Brew oz will become Brew liters, Temperature changes from F° to C°).  
DEFAULT RECIPE CHART - ICB  
No Name Coffee Jamaica Blue Mtn  
ADJUSTMENT RANGES  
ICB  
ITB/ITCB  
Regular  
Decaf  
Colombian  
Colombia Supremo  
Costa Rican  
Ethiopian  
Guatemalan  
Light Roast  
Dark Roast  
Expresso  
Amaretto  
Hazelnut  
BREW OZ  
% BYPASS  
DILUTE OZ  
OFF/10-224 OFF/10-135  
0-90%  
0-580  
0-10 Min  
DILUTE DELAY  
PULSE BREW  
1st On Time – OFF to 1 Min  
Off Time – OFF - 20 seconds  
Kona  
Kenya AA  
Sumatran  
French Roast  
Italian Roast  
Mocha Java  
House Blend  
Breakfast Blend  
French Vanilla  
Irish Creme  
Vanilla Nut  
Caramel  
Raspberry  
Almond  
Last On Time – Pre-Infuse to 1 Min  
OFF to 5 Min  
DRIP TIME  
SWEET METER  
1-14  
* REVIEW RECIPES (Modify or Show recipes)  
This function has two parts:  
1. It allows the operator to view the brew settings for  
the various coffee recipes stored into the brewer.  
2. It allows the operator to modify (change) any of  
the brew settings for a particular recipe stored in  
the brewer.  
Dark Mtn Roast  
Hot Tea  
DEFAULT RECIPE CHART - ITB/ITCB  
Iced Coffee (ITCB ONLY)  
Tea 1  
Tea 2  
Tea 3  
No Name Coffee (ITCB ONLY)  
Hot Tea  
Procedure for reviewing the recipes:  
1. Press and hold the right hidden switch until the  
displayreadsSETLANGUAGE.Pressandreleasethe  
right hidden switch until the display reads REVIEW  
RECIPES. Select YES.  
2. The display should now read the name of the first  
recipe, along with MODIFY SHOW and NEXT.  
DEFAULT ASSIGNMENTS  
BREW A  
BREW B  
Decaf  
Tea 1  
BREW C  
Brkfst Blnd  
Disabled  
ICB  
ITB  
ITCB  
Regular  
Disabled  
Tea 1  
Hot Tea No-Nm Coff  
(cont.)  
41581.2 091609  
Page 12  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
3. Select SHOW. The screen will scroll through all the brew settings for that particular recipe. When finished,  
the display will return to the recipe name just viewed.  
4. To see the settings again, select SHOW. To change settings, select MODIFY. Then the screen will display  
BREW OZ and a batch light will be blinking.  
5. Using (-) or (+), set the amount of brew water to be dispensed for that batch size.  
6. When finished, press the other batch size and repeat step #8.  
7. When finished setting both batch sizes, select DONE. The display should read 2 BATCHES DONE?  
8. If both batch sizes are not correct press and release NO to return to the BREW OZ setup screen and repeat  
steps #8, 9 and 10.  
REVIEW RECIPES  
NO  
YES  
VIEW/MODIFY ITEMS  
ITB/ITCB  
ICB  
Brew Ounces  
Dilution Ounces  
Dilution Delay Time  
Pulse Brew/Preinfusion Times  
Drip Times  
* SWEET METER  
PRESSING NO WILL  
ADVANCE TO NEXT  
FUNCTION SCREEN  
NO NAME COFFEE  
% Bypass  
MODIFY SHOW NEXT  
REGULAR  
MODIFY SHOW NEXT  
* ITB/ITCB WITH FACTORY SWEETENER  
BY PRESSING "MODIFY", YOU CAN STEP  
THROUGH & CHANGE ALL THE BREW  
SETTINGS FOR THAT RECIPE, SIMPLY  
FOLLOW THE ON SCREEN PROMPTS  
SCROLLS THROUGH  
ALL DEFAULT RECIPES  
(RECIPE NAME)  
MODIFY SHOW NEXT  
BY PRESSING "SHOW", THE  
DISPLAY WILL AUTOMATICALLY  
SCROLL THROUGH ALL THE BREW  
SETTINGS FOR THAT RECIPE  
THAT WAS THE  
LAST RECIPE  
41581.2 091609  
Page 13  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
9. If both batch sizes are correct, press YES. This will  
Setting Pulse Brew – EASY Pulse Brew  
advance to the DILUTE OZ (ITCB) or BYPASS %  
(ICB)  
10. Using (-) or (+), set the amount of dilution water for  
that particular batch size to be dispensed through  
the dilution nozzle into the tea dispenser (ITCB) or  
% bypass water to be dispensed around the filter/  
grounds (ICB).  
Range: Minimum: will adjust to the minimum time  
required to brew that batch using the set brew volumes  
and flow rate for the sprayhead. Maximum – will adjust  
dependingonsettingsandwillalwaysbeminimumtime  
+ 3 minutes. The brewer will automatically calculate  
what the 1ST ON TIME, OFF TIMES, and LAST ON  
TIME will be using THE INITIAL ON TIME, plus a 7  
pulse routine.  
11. Whennished,presstheotherbatchsizeandrepeat  
step #10.  
12. When finished setting both batch sizes, press and  
release DONE. The display should read 2 BATCHES  
DONE?  
22. Select EASY. With EASY flashing, select NEXT.  
23. The display should now read BREW TIME: and a  
batch light will be blinking. Select the batch size to  
be modified.  
24. Using (-) or (+), set the total brew time desired  
including spray times and off times.  
13. If both batch sizes are not correct, select NO to  
return to the BYPASS % function (ICB) or DILUTE  
OZ function (ITCB) and repeat steps #10-12.  
14. If both batch sizes are correct, press YES. This will  
advancetotheDILUTEDELYfunction(ITCB)orSET  
PULSE BREW function (ICB) jump to step # 21.  
15. (ITCB ONLY) Press and release YES. The display  
should now read DILUTE DELY: and a batch light  
will be blinking. Press and release the batch size  
to be modified.  
16. Using (-) or (+), set the time delay for the dilution  
water to start for that particular batch size.  
17. Whennished,presstheotherbatchsizeandrepeat  
step # 16.  
25. Whennished,presstheotherbatchsizeandrepeat  
step # 24.  
26. When finished setting both batch sizes, press  
DONE. The display will show the pulse settings to  
accommodate the brew time entered. Press and  
release each batch size to display the settings for  
that batch. After a delay, the display should read 2  
BATCHES DONE?  
27. If both batch sizes are not correct, press NO to  
return to the BREW TIME setup screen and repeat  
steps 24-26.  
18. When finished setting both batch sizes, press and  
release DONE. The display should read 2 BATCHES  
DONE?  
19. Ifbothbatchsizesarenotcorrect,pressandrelease  
NO to return to the DILUTE DELY setup screen and  
repeat steps 16 - 18.  
20. If both batch sizes are correct, press YES. The  
display should now read SET PULSE BREW.  
21. To set PULSE BREW press YES. The display should  
nowreadSELECTMETHOD.TosettheEASYmethod,  
continue to step # 22. To set by MANUAL method,  
jump to step # 28.  
Setting Pulse Brew/PreInfusion – MANUAL  
28. Select MANUAL. With MANUAL flashing, select  
NEXT.  
29. The display should now read, 1st ON TIME and a  
batch light will be blinking. Select the batch size to  
be modified.  
30. Using (-) or (+), adjust the 1ST ON TIME.  
31. Whennished,presstheotherbatchsizeandrepeat  
step # 30.  
NOTE: To disable pulse brew, set 1ST ON TIME to OFF.  
Brewer will automatically pulse on tea recipes with a  
brew volume greater than 86.0 oz.  
32. When finished setting both batch sizes, press  
DONE.  
ON-  
TIME  
ON-  
TIME  
ON-  
TIME  
INITIAL SPRAY  
INITIAL SPRAY  
ALTERNATES UNTIL  
BREW CYCLE IS  
COMPLETED  
OFF-  
TIME  
OFF-  
TIME  
OFF-  
TIME  
33. The display should now read OFF TIME. Adjust the  
OFF TIME using (-) or (+).  
REMAINING ON  
OFF-TIME  
PRE-INFUSION  
(cont.)  
41581.2 091609  
Page 14  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
34. Whennished,presstheotherbatchsizeandrepeat  
Setting SWEET METER: Optional on ITCB  
step # 33.  
This function allows the operator to adjust the amount  
of sweetener added to the dilution water. The solenoid  
is pulsed on/off for the duration of the dilution cycle.  
Setting #1 will produce the least amount of sweetener  
(weakest) and (#14) being the most (strongest).  
35. When finished setting both batch sizes, press and  
release DONE.  
36. The display should now read LAST ON:. Adjust the  
LAST ON TIME using (-) or (+). If PREINFUSION  
is desired, set the LAST ON TIME to PreI.  
37. Whennished,presstheotherbatchsizeandrepeat  
step # 36.  
Procedure:  
47. The display should now read "SWEETNER"  
48. Press(-)todecreasetheamount,or(+)toincrease.  
(Range: 1 - 14)  
38. When finished setting both batch sizes, press and  
release DONE.  
39. The display will show the three times just entered.  
Pressandreleaseeachbatchsizetodisplaytheset-  
tings for that batch. If the 1ST ON TIME is set to OFF,  
thedisplaywillreadPULSEBREWDISABLED. After  
a 5 second delay, the display will read 2 BATCHES  
DONE?  
49. When finished, press and release the right hidden  
switch, or press and release the "ENABLE BREW  
ON/OFF" switch to return to the main screen.  
40. If both the pulse brew settings for both batch sizes  
are not correct, press and release NO to return to  
the 1ST ON TIME setup screen and repeat steps 24  
through 39.  
41. If both batch sizes are correct, press YES. The  
display should now read DRIP TIME.  
Setting DRIP TIME:  
NOTE: Drip time also controls the solenoid on time  
for models with optional funnel locks.  
42. ThedisplayshouldnowreadDRIPTIME,alongwith  
either the word OFF or a time showing. A batch  
light will also be blinking.  
43. Using (-) or (+), set the amount of time from when  
the brew spray ends to when the funnel is emptied  
of hot liquid.  
44. Whennished,presstheotherbatchsizeandrepeat  
step #43.  
45. When finished setting both batch sizes, press and  
release DONE. The display should read 2 BATCHES  
DONE?  
46. Select YES. The screen should show the name of  
the recipe being programmed (modified) along  
with SETUP COMPLETE (except for ITCB w/Sweet  
meter, step # 47).  
41581.2 091609  
Page 15  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
ICB  
ITB/ITCB  
REVIEW RECIPES  
REVIEW RECIPES  
NO YES  
NO  
YES  
NO NAME COFFEE  
TEA 1  
MODIFY SHOW NEXT  
MODIFY SHOW NEXT  
BREW OZ: 64  
BREW OZ: 76  
(-)  
DONE  
(+)  
(-)  
DONE  
(+)  
% BYPASS: 20  
DILUTE OZ: 320.0  
(-) DONE (+)  
(-)  
DONE  
(+)  
SET PULSE BREW?  
DILUTE DELAY 00.0  
(-) DONE (+)  
NO  
YES  
SET PULSE BREW?  
DRIP TIME: 0:30  
SELECT METHOD  
NO  
YES  
(-)  
DONE  
(+)  
EASY  
MANUAL  
DRIP TIME: 1:20  
SELECT METHOD  
(-)  
DONE  
(+)  
EASY  
MANUAL  
SWEETNER  
4
OPTIONAL-ONLY ON UNITS WITH  
FACTORY INSTALLED SWEETENER  
-
+
OVERVIEW ONLY - SOME SCREENS OMITTED  
41581.2 091609  
Page 16  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* ASSIGN RECIPE to or disable BREW SWITCH(S)  
This function allows the operator to assign a recipe to  
(or disable) each of the 3 brew switches (A, B, C). Any  
saved recipes listed under "REVIEW RECIPES" can be  
assigned to a brew switch. Only one recipe per brew  
switch is allowed.  
ASSIGN RECIPE  
NO  
YES  
Procedure to select switch recipes  
ADVANCE TO  
NEXT FUNCTION  
SCREEN  
SELECT RECIPE  
1. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press the right hid-  
denswitchuntilthedisplayreadsASSIGNRECIPE?  
Press YES.  
<-<-<-BREW SWITCH A  
"RECIPE NAME"  
2. ThedisplayshouldnowreadSELECTRECIPEBREW  
SWITCH A, and then REGULAR (ICB) or TEA 1  
(ITCB).  
(-)  
DONE  
(+)  
SCROLL THROUGH  
STORED RECIPES IN  
BREWER MEMORY  
3. Using (-) and (+), scroll through the stored recipes  
in the brewer’s memory until the desired recipe  
name is reached.  
4. Select DONE to set that recipe for brew switch A.  
5. The display should now read SELECT RECIPE  
BREW SWITCH B, and then DECAF (ICB) or HOT  
TEA (ITCB).  
6. Using (-) and (+), scroll through the stored recipes  
in the brewer’s memory until the desired recipe  
name is reached.  
SELECT RECIPE  
<-<-<-BREW SWITCH B  
"RECIPE NAME"  
(-)  
DONE  
(+)  
SCROLL THROUGH  
STORED RECIPES IN  
BREWER MEMORY  
7. Select DONE to set that recipe for brew switch B.  
8. ThedisplayshouldnowreadSELECTRECIPEBREW  
SWITCH C, and then BREAKFAST BLEND (ICB) or  
NO NAME COFFEE (ITCB).  
SELECT RECIPE  
<-<-<-BREW SWITCH C  
9. Using (-) and (+), scroll through the stored recipes  
in the brewer’s memory until the desired recipe  
name is reached.  
10. Select DONE to set that recipe for brew switch C.  
11. Repeat steps 2 - 10 for right side of Twins.  
"RECIPE NAME"  
(-)  
DONE  
(+)  
SCROLL THROUGH  
STORED RECIPES IN  
BREWER MEMORY  
Procedure to disable a Brew Switch:  
1. Follow the same procedure as above. Choose DIS-  
ABLED instead of recipe name.  
REPEAT FOR BREW  
SWITCH A, B, C FOR  
RIGHT SIDE  
2. Select DONE to disable that brew switch.  
SET NEW RECIPE?  
NO YES  
41581.2 091609  
Page 17  
PROGRAMMING THE BREWER (cont.)  
NOT AVAILABLE ON ITB  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
switch until the display reads SET LANGUAGE.  
Press and release the right hidden switch until the  
display reads SET NEW RECIPE.  
* SET NEW RECIPE (COFFEE ONLY)  
To set a new COFFEE recipe using a Smart Funnel  
and a G9-2T DBC or MHG Grinder:  
4. Select YES. The display should read INSERT FUN-  
NEL WITH NEW NAME, then QUIT SETUP? These  
two displays will repeatedly cycle.  
5. Insert the funnel into the rails on the brewer (Left  
on Twins). The display should read the name of  
the coffee that was ground into the funnel, along  
with a NO and YES. If the name on the display is  
correct, press YES.  
6. If, for some reason, the name of the coffee from  
the grinder did not load properly into the funnel,  
or if a grind has not yet been done, the display will  
read MUST GRIND INTO FUNNEL FIRST. It will be  
necessary to grind another batch following steps  
1, 2 & 5.  
This function allows the operator to set BREW VOL-  
UMES, BYPASS %, PULSE BREW/PREINFUSION  
TIMES AND DRIP OUT TIMES for each coffee name  
stored in the grinder’s memory.  
Certaincoffeenamesarestoredinthegrinder’smemory.  
When a particular name of coffee is ground into the  
Smart Funnel, that name and the batch size selected  
are transferred from the grinder to the programming  
CHIP located in the funnel handle. The funnel is then  
inserted into the brewer’s funnel rails. The SENSING  
COIL on the brewer reads the information contained in  
the handle. The name of the coffee flavor will then ap-  
pear on the display. This allows the operator to set the  
BREW VOLUMES, BYPASS % (N/A on ITCB), PULSE  
BREW/PREINFUSIONTIMESANDDRIPOUTTIMESfor  
that particular coffee name. Each coffee name can be  
set individually to provide optimum brewing quality.  
NOTE: If brewer memory is full, the display will read  
RECIPESTORAGEAREAISFULLandthenREMOVE  
A FLAVOR? To remove a recipe press and release  
YES.PressNEXTtoscrollthroughthestoredrecipes.  
When the display reads the name of the recipe to be  
removed, press and release REMOVE. The display  
will read REMOVE? Press CANCEL to exit the SET  
NEW RECIPE function. Press OK to remove that  
recipe. The display will then show BEGIN SETUP  
OF (COFFEE NAME).  
7. If the grind is acknowledged by the brewer, the  
displaywillreadBEGINSETUPOF(COFFEENAME).  
Then the screen will display BREW OZ and a batch  
light will be blinking. Follow steps on page 11  
(Review Recipes) to adjust recipe settings.  
SET NEW COFFEE ITEMS  
ICB  
ITCB  
Brew Ounces  
% Bypass  
Dilution Ounces  
Dilution Delay Time  
Pulse Brew/Preinfusion Times  
Drip Times  
* SWEET METER  
* ITCB WITH FACTORY SWEETENER  
Procedure for Setting the Recipe:  
NOTE: Before beginning setup, place a server beneath  
the brew funnel.  
1. Insert the funnel into the grinder and select the  
smallbatchsizetogrind. Itisnotnecessarytohave  
coffee beans in the hopper(s) in order to program  
the brewer. The coffee name is pre-selected and  
stored in the grinder’s memory for the side being  
ground.  
2. Press the GRIND switch. When the grinder stops  
grinding, remove the funnel.  
3. On the brewer, press and hold the right hidden  
41581.2 091609  
Page 18  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* SET TEMP - ICB (MASTER TEMP - ITCB)  
* ENABLE ADS  
This function allows the operator to adjust the brew This function allows the operator to choose whether  
water temperature in the tank. This also sets the hot  
water faucet dispense temperature.  
or not to display an advertising message. An ad can be  
saved to the brewer by either writing the ad using the  
programming commands, or by entering the ad into  
the brewer using an AD CARD. This message will be  
displayed when the brewer is not in use.  
Procedure for setting the Set Temp  
Range: 185° to 205° F (85° - 96° C)  
Procedure to Enable/Disable Ads:  
1. Press and hold the right hidden button until the  
display reads SET LANGUAGE. Press the right  
hidden button until the display reads SET TEMP.  
2. Using (-) and (+), adjust the brew and faucet tem-  
perature.  
1. Press and hold the right hidden button until the  
display reads SET LANGUAGE. Press the right hid-  
denbuttonuntilthedisplayreadsENABLEADS.The  
YES or NO will be flashing to indicate the current  
selection.  
3. When finished, press and release DONE to save  
2. Select NO to disable this function, or:  
the new setting and to advance to the next function 3. Select YES to enable this function.  
screen,READYDEGREE.PressENABLEBREWON/ 4. Whennished, select DONEtosavethenewsetting  
OFF switch to exit programming and return to the  
MAIN SCREEN.  
and advance to the next function screen.  
5. If NO was selected, the display should now read  
ENABLE SANITATION. To exit programming and  
return to the MAIN SCREEN, press ENABLE BREW  
ON/OFF switch.  
* READY DEGREE  
This function allows the operator to set the minimum  
temperature allowable to start a brew cycle. The range 6. If YES was selected, the display should now read  
can be from 2° to 20° F below the set temperature. The  
water must be at the READY temperature or higher  
for the display to indicate READY TO BREW. If brew  
lockout is enabled, the brewing process will not start  
below this READY temperature.  
NEW AD?. This screen allows the operator to select  
between using an ad card to read in a new ad, or  
writing an ad through the control panel.  
Procedure to WRITE an Ad:  
NOTE: Writing and saving a new ad will erase any  
previously saved ad in the brewer’s memory.  
Procedure to set ready temperature  
Range: 2° to 20° F (2° to 10° C) below set temp  
7. From the NEW AD? screen, select WRITE.  
1. Press and hold the right hidden button until the dis- 8. The display should now read 2 LINES 16 CHARS  
play reads SET LANGUAGE. Press the right hidden  
button until the display reads READY DEGREE.  
2. Using (-) and (+), adjust the ready temperature.  
3. When finished, select DONE to save the new setting  
and to advance to the next screen, ENABLE ADS.  
Press ENABLE BREW ON/OFF switch to exit.  
AVAILABLE, and then SCROL THRU ALPHA, NEXT  
-> NEXT LETTER, and then WRITE TOP LINE?. The  
ad can be up to 32 characters long, 16 per line. The  
ad will be written in two steps, first the top line,  
then the bottom line.  
9. To write the top line of a new ad, select YES. To skip  
the top line and only write a bottom line, select NO  
and proceed to step 13.  
10. The display will now read A with a flashing cursor  
belowit.PresstheSCROLLbuttontoscrollthrough  
thealphabetandavailablecharacters. Whenthede-  
siredcharacterisshownonthedisplay,selectNEXT  
to move to the next character in the top line.  
11. Repeat step 10 until the top line is complete.  
41581.2 091609  
Page 19  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
12. Select DONE. The display should now read WRITE  
* ENABLE SANITATION  
BTM LINE?.  
This function allows the operator to enable the sanita-  
tion function and set the time before a cleaning alert  
will be displayed.  
13. To write the bottom line, select YES.  
14. To skip the bottom line, select NO.  
a. If neither a top nor bottom line was written, the  
display should now read ENABL SANITATION.  
Procedure for enabling sanitation:  
b. If only a top line was written, the ad will be Range: 0.0 to 72.0 hrs  
displayed followed by SAVE? Proceed to step 18.  
15. The display will now read A with a flashing cursor 1. Press and hold the right hidden button until the  
below it. Scroll through the alphabet and available  
characters. When the desired character is shown  
on the display, select NEXT to move to the next  
character in the bottom line.  
display reads SET LANGUAGE. Press and release  
the right hidden button until the display reads EN-  
ABL SANITATION. The YES or NO will be flashing  
to indicate the current selection.  
16. Repeat step 15 until the bottom line is complete.  
17. SelectDONE. Thedisplaywillnowshowthewritten  
ad, and then SAVE?  
18. To cancel saving the ad, select NO. The display  
should now read ADVERTISEMENT NOT SAVED!  
and then will return to the NEW AD screen.  
2. Select NO to disable this function (no sanitation  
alert will be displayed on the screen), or:  
3. SelectYEStoenablethisfunction(asanitationalert  
will displayed on the screen).  
4. Whennished, select DONEtosavethenewsetting  
and advance to the next function screen.  
19. To correct or edit the ad, select EDIT. The display 5. If NO was selected, the display should now read  
should now read WRITE TOP LINE? Repeat steps  
10 though 17.  
20. To save the ad as it is shown, select YES. The  
ENABLE ENERGYSAVR. To exit programming and  
return to the MAIN SCREEN, press ENABLE BREW  
ON/OFF switch.  
display should now read ADVERTISEMENT SETUP 6. If YES was selected, the display should now read  
COMPLETE, and then ENABL SANITATION. To exit  
programming and return to the MAIN SCREEN,  
press ENABLE BREW ON/OFF switch.  
X.X HRS -> CLEAN. This screen allows the opera-  
tor to set the amount of time from when a brew is  
completed until a sanitize alert will be displayed.  
Use(-)and(+)toadjustthesettime.Whennished,  
select DONE.  
Procedure to READ in a new Ad: Not available on ITB  
NOTE: Saving a new ad will erase any previously saved  
ad in the brewer’s memory.  
NOTE: The timer will not begin until after a brew cycle  
has been completed.  
7. From the NEW AD? screen, select CARD.  
8. The display will show INSERT AD CARD. Place 7. The display should now read X.X HRS UNTIL  
the AD CARD vertically so that the top end of the  
"chip" is beneath the sensing coil (located on the  
underneath side of the front display panel).  
9. After a short pause, the display will read CARD  
CONTAINS AD. To view the ad, press and release  
SHOW. To save the ad to the brewer's memory,  
select SAVE. To cancel, select QUIT.  
10. After the ad is saved, the display will read AD MES-  
SAGE SETUP COMPLETE, and then will advance to  
ENABLE SANITATION.  
NEXT CLEAN, and then advance to ENABLE EN-  
ERGYSAVR.  
8. Once the set time has expired, the display will read  
PLEASE SANITIZE, and then PRESS FULL FOR 3  
SEC TO CANCEL.  
9. Clean and sanitize the machine.  
10. When finished, press and hold the FULL batch  
switch to reset the Sanitation timer. The display  
shouldnowreadSANITATIONCOMPLETEandthen  
will return to the MAIN SCREEN.  
41581.2 091609  
Page 20  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* ENABLE FRESH TIMER  
* ENABLE ENERGY SAVER  
ThisfunctionallowstheoperatortoenabletheENERGY  
ThisfunctionallowstheoperatortoenabletheFreshness  
SAVINGS mode function and set the idle time. Once Alert and set the expiration time. The expiration time is  
the set idle time has expired, the operator can choose the amount of time the product is allowed to sit in the  
to have the heaters either turn off, or reduce the tank server/dispenser before a fresh batch is brewed.  
holding temp to 140° F (60° C).  
Procedure for enabling/setting the Freshness Timer:  
Range: Coffee 0.5 to 4.0 hrs  
Hot Tea 0.5 to 8.0 hrs  
Procedure to enable energy savings mode:  
Range: 0.5 to 24.0 hrs  
If enabled, default setting is 140° F (60° C) tank tem-  
perature after 4.0 hrs. idle time.  
If enabled, default setting is 2.0 hrs. for Coffee and 2.0  
hrs. for Hot Tea.  
1. Press and hold the right hidden switch until the 1. Press and hold the right hidden button until the  
displayreadsSETLANGUAGE.Pressandreleasethe  
right hidden switch until the display reads ENABLE  
ENERGYSAVR. The YES or NO will be flashing to  
indicate the current selection.  
display reads SET LANGUAGE. Press and release  
the right hidden button until the display reads EN-  
ABLE FRESHTIMER.  
2. Select NO to disable or:  
2. Select NO to disable or:  
3. Select YES to enable this function.  
4. When finished, press and release DONE to save the  
new setting and advance to the next screen.  
3. Select YES to enable this function (the unit will dis-  
play a message once the set time has expired).  
4. Whennished, select DONEtosavethenewsetting  
and advance to the next screen.  
5. If NO was selected, the display should now read 5. If NO was selected, the display should now read  
EnableFreshTimer.Toexitprogrammingandreturn  
to the MAIN SCREEN, press ENABLE BREW ON/  
OFF switch.  
REFILL. To exit programming and return to the  
MAIN SCREEN, press either ENABLE BREW ON/  
OFF switch.  
6. If YES was selected, the display should now read 6. If YES was selected, the display should now read  
X.X HRS -> IDLE. This screen allows the operator  
to set the amount of time the brewer is not in use  
beforeenergysavemodeengages.Using(-)and(+),  
adjust the idle time. When finished, select DONE.  
7. The display should now read AFTER IDLE TIME?  
Once the set idle time has expired, the heaters can  
either be shut off or held at 140° F.  
8. To have the heaters shut off after the set idle time,  
select OFF and then DONE to save the settings.  
The display should read MACHINE OFF AFTER X.X  
HRS, and then EnableFreshTimer.  
COFFEE. This screen allows the operator to set the  
amount of time from the end of brewing a batch  
of coffee until a Freshness Alert message will be  
displayed. Using (-) and (+), adjust the freshness  
time for coffee. When finished, select DONE.  
7. The display should now read HOT TEA. Using (-)  
and(+), adjustthefreshnesstimeforhottea. When  
finished, select DONE.  
8. This display should now read REFILL. To exit pro-  
gramming and return to the MAIN SCREEN, press  
ENABLE BREW ON/OFF switch.  
9. To have the temperature reduce to 140° F, select 9. Once the set time has expired, the display will read  
140°andthenDONEtosavethesettings.Thedisplay  
should read MACHINE AT 140° AFTER X.X HRS,  
and then EnableFreshTimer.  
FRESHNESS ALERT BREW (A,B or C), and then  
FRESHNESSALERTBREWFRESHBATCHalternat-  
ing with the MAIN SCREEN.  
10. Once the idle time has expired, the display will  
read either ENERGY SAVER...NO TEMPERATURE  
10. Emptytheserver/dispenserthepreviousbatchwas  
brewed into and replace under the funnel.  
or ENERGY SAVER...REDUCED TEMPERATURE, 11. Brew a new batch  
dependingonthesettings.Thisscreenwillalternate 12. The freshness timer will reset. The display should  
with PRESS ANY SWITCH TO RE-HEAT.  
now return to the MAIN SCREEN.  
41581.2 091609  
Page 21  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
3. Select DONE.  
* REFILL  
Range: 0 to 155  
4. Repeat procedure for right side of Twins.  
5. When finished, press and release DONE to advance  
to the next screen. To exit programming and return  
to the MAIN SCREEN, press ENABLE BREW ON/  
OFF switch.  
NOTE: If the flow rate is unknown, proceed to the  
CALIBRATE FLOW screen.  
This function allows the operator to adjust the sensitiv-  
ity of the refill circuit. This is mainly a troubleshooting  
feature. Water in different geographical locations can  
havedifferentconductivities.Byadjustingthesensitivity  
of the refill circuit, this will allow the brewer to operate  
under various water conditions.  
* BYPASS OZ/M (ICB & ICB Twins only)  
This function allows the operator to view or enter the  
actual flow rate coming out of each bypass fitting. This  
Procedure to set the sensitivity threshold of the refill  
circuit:  
NOTE: Make sure the water in the tank is touching the is NOT used to control the actual flow rate, but to tell  
refill probe.  
the internal processor how fast the water is flowing.  
1. Press and hold the right hidden switch until the  
displayreadsSETLANGUAGE.Pressandreleasethe  
Procedure to adjust the bypass flow rate setting:  
right hidden switch until the display reads REFILL 1. Press and hold the right hidden switch until the  
and shows a number on both sides of the word.  
2. Toadjustthethresholdsetting,press(-)todecrease  
or (+) to increase the setting.  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads  
BYPASS OZ/M. The number represents what the  
brewer thinks is the flow rate out of that bypass.  
NOTE: Always make sure that the number on the right 2. If the actual flow rate of the bypass is known but  
is larger than the number on the left when water is in  
contact with the refill probe in the tank.  
is different than the number on the display, use the  
(-) and (+) to enter the correct flow rate.  
3. Select DONE.  
3. When finished, select DONE. This saves the new  
setting and advances to the next function screen  
(L) SPRAY OZ/M. To exit programming and return  
to the MAIN SCREEN, press ENABLE BREW ON/  
OFF switch.  
4. Repeat procedure for right side of Twins.  
5. When finished, press and release DONE to advance  
to the next screen. To exit programming and return  
to the MAIN SCREEN, press ENABLE BREW ON/  
OFF switch.  
* SPRAY OZ/M  
NOTE: If the flow rate is unknown, proceed to the  
This function allows the operator to view or enter the  
actual flow rate coming out of each sprayhead. This is  
NOT used to control the actual flow rate, but to tell the  
internal processor how fast the water is flowing.  
CALIBRATE FLOW screen.  
* DILUTE OZ/M (ITB/ITCB only)  
This function allows the operator to view or to enter the  
actual flow rate coming out of the dilution nozzle. This  
is NOT used to control the actual flow rate, but to tell  
Procedure to set the sprayhead flow rate:  
1. Press and hold the right hidden switch until the the internal processor how fast the water is flowing.  
display reads SET LANGUAGE. Press and release  
therighthiddenswitchuntilthedisplayreadsSPRY  
OZ/M. The number represents what the brewer  
thinks is the flow rate out of that sprayhead.  
Procedure to adjust the dilution flow rate setting:  
1. Press and hold the right hidden switch until the  
displayreadsSETLANGUAGE.Pressandreleasethe  
right hidden switch until the display reads DILUTE  
OZ/M. The number represents what the brewer  
thinks is the flow rate out of the dilution nozzle.  
2. If the actual flow rate of the sprayhead is known  
but is different than the number on the display, use  
the (-) and (+) to enter the correct flow rate.  
41581.2 091609  
Page 22  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
2. If the actual flow rate of the nozzle is known but is 8. Repeat steps 1-7 to calibrate the other side.  
different than the number on the display, use the  
(-) and (+) to enter the correct flow rate.  
3. When finished, select DONE. This saves the new  
settingandadvancestothenextscreen,CALIBRATE  
FLOW.ToexitprogrammingandreturntotheMAIN  
SCREEN, press ENABLE BREW ON/OFF switch.  
9. To exit the CALIBRATE FLOW function and advance  
to the next screen, select NO. To exit programming  
and return to the MAIN SCREEN, press either EN-  
ABLE BREW ON/OFF switch.  
Procedure to calibrate the bypass flow rate: (ICB)  
1. Placeacontainer, accuratelygraduatedwithamini-  
mum capacity of 60 ounces, under the funnel.  
2. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads  
CALIBRATE FLOW?  
NOTE: If the flow rate is unknown, proceed to the  
CALIBRATE FLOW screen.  
* CALIBRATE FLOW  
This function allows the operator to test and enter the  
actual flow rate of the sprayhead(s) and the bypass/  
dilution for each side of the brewer by dispensing each  
3. SelectYEStoadvanceto SPRAYHEADCAL screen.  
Select NO to advance to BYPASS CAL.  
separatelyforoneminute.Thevolumesarethenentered 4. Select YES.  
into the brewer.  
The display should read CONTAINER READY? If  
container is under the funnel, select YES.  
5. ThedisplayshouldreadCALIBRATEBYPASS.Press  
any BREW button on the side to be calibrated to  
begin the flow for calibration. The display should  
readCALIBRATEBYPASS...60SECTOFINISH.The  
60-second timer on the display will count down to  
zero. When the counter reaches zero, the display  
will change to LEFT or RIGHT OZ/M, along with a  
number.  
Procedure to calibrate the sprayhead flow rate:  
1. Placeacontainer, accuratelygraduatedwithamini-  
mum capacity of 60 ounces, under the funnel.  
2. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads  
CALIBRATE FLOW?  
3. SelectYEStoadvanceto SPRAYHEADCALscreen.  
(Selecting NO in the CALIBRATE FLOW screen will 6. Measure the amount of water in the container and  
advance to BREW COUNTERS).  
4. Select YES.  
The display should read CONTAINER READY? If  
container is under the funnel, select YES.  
5. The display should read CALIBRATE SPRAY. Press  
and release any BREW button on the side to be cali-  
brated to begin the sprayhead flow for calibration.  
using the (-) and (+), adjust the amount on the  
display to match the amount in the container. Then  
select DONE.  
7. The display should now read NEW L or NEW R  
BYPS FLOW, along with the correct flow rate of  
the bypass. After about 5 seconds, the display will  
return to the CALIBRATE FLOW screen.  
The display should read CALIBRATE SPRAY...60 8. Repeat steps 1-7 to calibrate the other side.  
SECTOFINISH. The60-secondtimeronthedisplay  
will count down to zero. When the counter reaches  
zero, the display will change to LEFT or RIGHT OZ,  
along with a number.  
9. To exit the CALIBRATE FLOW function and advance  
to the next function screen, select NO. To exit pro-  
gramming and return to the MAIN SCREEN, press  
ENABLE BREW ON/OFF switch.  
6. Measure the amount of water in the container and  
use (-) and (+) to match the display to the amount  
in the container. Then select DONE.  
7. The display should now read NEW L or NEW R  
SPRY FLOW, along with the correct flow rate of  
the sprayhead. After about 5 seconds, the display  
will return to the CALIBRATE FLOW screen.  
Procedure to calibrate the dilution flow rate: (ITCB)  
1. Placeacontainer, accuratelygraduatedwithamini-  
mum capacity of 130 ounces, under the funnel.  
(cont. on page 24)  
41581.2 091609  
Page 23  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* CALIBRATE FLOW (cont.)  
ICB Series  
ITB/ITCB Series  
CALIBRATE FLOW?  
NO YES  
CALIBRATE FLOW?  
NO  
YES  
BREW  
COUNTERS  
BREW  
COUNTERS  
SPRAYHEAD CAL  
SPRAYHEAD CAL  
NO  
YES  
NO  
YES  
CONTAINER READY?  
CONTAINER READY?  
BYPASS CAL?  
QUIT YES  
DILUTION CAL?  
QUIT  
YES  
QUIT  
YES  
QUIT  
YES  
CONTAINER READY?  
QUIT YES  
CONTAINER READY?  
CALIBRATE SPRAY  
PRESS BREW START  
CALIBRATE SPRAY  
QUIT START  
QUIT  
YES  
CALIBRATE SPRAY  
60 SEC TO FINISH  
CALIBRATE SPRAY  
60 SEC TO FINISH  
CALIBRATE BYPASS  
PRESS BREW START  
CALIBRATE DILUTE  
QUIT START  
L/R OZ XX.X  
SPRAYHD OZ XX.X  
CALIBRATE BYPASS  
60 SEC TO FINISH  
CALIBRATE DILUTE  
60 SEC TO FINISH  
(-)  
DONE  
(+)  
(-)  
DONE  
(+)  
L/R OZ XX.X  
NEW SPRAY FLOW  
XX.X OZM  
DILUTE OZ XX.X  
NEW SPRAY FLOW  
XX.X OZM  
(-)  
DONE  
(+)  
(-)  
DONE  
(+)  
NEW L BYPS FLOW  
XX.X OZM  
NEW DILUTE FLOW  
XX.X OZM  
5 sec  
5 sec  
5 sec  
5 sec  
CALIBRATE FLOW?  
CALIBRATE FLOW?  
NO  
YES  
NO  
YES  
41581.2 091609  
Page 24  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
NOTE: If the display is already on the DILUTION CAL  
screen, skip steps 2-3 and proceed directly to step 4.  
2. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads  
CALIBRATE FLOW?  
3. SelectYEStoadvanceto SPRAYHEADCALscreen.  
Select NO to advance to DILUTION CAL.  
4. Select YES.  
The display should read CONTAINER READY? If  
container is under the funnel, select YES.  
5. ThedisplayshouldreadCALIBRATEDILUTE.Select  
STARTtobeginthedilutionowforcalibration. The  
display should read CALIBRATE DILUTE...60 SEC  
TO FINISH. The 60-second timer on the display will  
countdowntozero.Whenthecounterreacheszero,  
the display will change to DILUTE OZ/M, along with  
a number.  
6. Measure the amount of water in the container and  
using the (-) and (+), adjust the amount on the  
display to match the amount in the container. Then  
select DONE.  
7. The display should now read NEW DILUTE FLOW,  
along with the correct flow rate of the sprayhead.  
After about 5 seconds, the display will return to the  
CALIBRATEFLOWscreen.Toexitprogrammingand  
return to the MAIN SCREEN, press ENABLE BREW  
ON/OFF switch.  
NOTE: On dual dilution models, left and right dilution  
calibrations will be shown.  
41581.2 091609  
Page 25  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* BREW COUNTERS  
BREW COUNTERS?  
NO YES  
Thisfunctionallowstheoperatortotrackthetotalnum-  
ber of brew cycles completed, as well as the number of  
batches brewed using each of the brew buttons. There  
are (up to) six resettable counters, and one life counter  
that is not resettable.  
PRESSING NO WILL  
ADVANCE TO  
ENTER ASSET #  
TOTAL LIFE BREWS  
XXXX NEXT  
Procedure to view/reset the brew counters:  
1. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
therighthiddenswitchuntilthedisplayreadsBREW  
COUNTERS.  
2. Pressing NO will advance to the next programming  
function. Select YES to view the first brew counter  
(TOTAL LIFE BREWS). This number represents the  
total number of brew cycles this brewer has com-  
pleted. This counter is non-resettable. Press NEXT  
to advance to the next brew counter, <- <- BREW  
A (left side).  
<- <- XXX BREW A  
RESET NEXT  
<- <- XXX BREW B  
RESET NEXT  
3. This counter represents the number of brews for  
Brew A on the left side of the brewer. To reset the  
counter to zero, press and release RESET. Press  
and release NEXT to advance to the next counter.  
4. Repeat step 3 for the remaining two left counters,  
BREW B and BREW C.  
<- <- XXX BREW C  
RESET NEXT  
5. Repeatstep4forthethreerightsidebrewcounters.  
(Twin only)  
6. When finished, press NEXT to advance to the next  
programming function, ENTER ASSET #. To exit  
programming and return to the MAIN SCREEN,  
press ENABLE BREW ON/OFF switch.  
ICB Twin  
shown.  
ITB/ITCB  
similar  
BREW A XXX -> ->  
RESET NEXT  
BREW B XXX -> ->  
RESET NEXT  
BREW C XXX -> ->  
RESET NEXT  
ENTER ASSET #?  
NO YES  
41581.2 091609  
Page 26  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* SET RECIPE TEMPS (ITCB only)  
This function allows the operator to set separate tem-  
peratures for each selected recipe.  
NOTE: To return to using the MASTER TEMP setting  
after RECIPE TEMPS have been used, press and hold  
the right hidden switch until the display reads SET  
LANGUAGE. Press and release the right hidden switch  
untilthedisplayreadsSETRECIPETEMPS. SelectYES.  
The display will read WILL OVERRIDE THE MASTER  
TEMP, and then OVERRIDE? To return to using the  
MASTER TEMP, select NO. To exit programming and  
NOTE: Setting recipe temps will override the MASTER  
TEMP. The tank will hold at the lowest temperature  
between the three selected recipes stored in the brew  
buttons. For instance, let’s say Brew A’s recipe tem-  
perature is set at 205°, Brew B’s recipe temperature is return to the MAIN SCREEN, press ENABLE BREW ON/  
set at 205°, and Brew C’s recipe temperature is set at  
200°. The tank will hold at 200°. If Brew A or Brew B  
is pressed, the tank will heat to the 205° temperature.  
The brew button must be pressed again in order for  
a brew to start. After the completion of that brew, the  
tank will return to the 200° holding temperature. It  
may take awhile for the tank to return to the lower  
temperature.  
OFF switch.  
SET RECIPE TEMPS  
NO YES  
PRESSING NO WILL  
ADVANCE TO  
ENTER ASSET #  
WILL OVERRIDE  
THE MASTER TEMP  
1. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads SET  
RECIPE TEMPS.  
2. To set different temperatures for different recipes,  
press and release YES. Pressing NO will advance  
to the next programming function, SERVICE  
TOOLS.  
3. The display should read WILL OVERRIDE THE  
MASTER TEMP, and then OVERRIDE? To retain the  
MASTER TEMP setting, press and release NO. To  
setseparaterecipetemperatures,pressandrelease  
YES.  
4. The display should read TEA 1. Using (-) and (+),  
adjust the temperature for TEA 1. When finished,  
press and release DONE.  
OVERRIDE?  
NO  
YES  
PRESSING NO  
WILL  
RETAIN THE  
MASTER TEMP  
TEA 1  
(-)  
XXX°  
DONE  
DONE  
(+)  
TEA 2  
(-)  
XXX°  
(+)  
5. The screen should now read TEA 2. Use (-) and (+)  
to adjust the temperature for TEA 2. When finished,  
press and release DONE.  
COFFEE  
(-) DONE  
XXX°  
(+)  
6. Repeat for all standard and stored recipes.  
7. After the last temperature has been entered, press  
DONE. The screen should now read TANK WILL  
HOLD AT LOWEST TEMP, and then advance to the  
ENTER ASSET # screen. To exit programming and  
return to the MAIN SCREEN, press ENABLE BREW  
ON/OFF switch.  
TANK WILL HOLD  
AT LOWEST TEMP  
ENTER ASSET #?  
NO  
YES  
41581.2 091609  
Page 27  
PROGRAMMING THE BREWER (cont.)  
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)  
* ASSET NUMBER  
* SERVICE TOOLS  
Thisfunctionallowstheoperatortoenterthemachine's  
asset number. This can be useful for tracking the usage  
or service of an individual machine within a group.  
(FOR AUTHORIZED SERVICE PERSONNEL ONLY)  
Thisfunctionallowsthetestingofindividualcomponents  
andtheabilitytocheckswitchesforproperfunction.This  
function also tests the funnel sensor coil’s frequency  
(diagnostic tool for troubleshooting purposes only).  
Refer to Service Manual for in depth procedures.  
Procedure to enter the asset number:  
1. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
therighthiddenswitchuntilthedisplayreadsENTER  
ASSET #?  
2. Select YES. The display will now read  
ANXXXXXX.  
3. Scroll down (-) or up (+), to set the asset number  
of the machine. NOTE: Starting from the right, each  
digit will control the next digit, like an odometer.  
4. Whennished,pressandreleaseDONE.Thedisplay  
will now read SERVICE #. To exit programming and  
return to the MAIN SCREEN, press ENABLE BREW  
ON/OFF switch.  
Test Outputs:  
The following components can be individually tested:  
(L/R) Brew Valve(s)  
(L/R) Bypass Valve(s) ICB(TWIN)  
(L/R) Dilution Valve(s) ITB/ITCB (w/Dual Dilution)  
Refill Valve  
Tank Heater Relay  
Tank Heater Triac  
L/R Funnel Lock (Optional)  
Sweetener Solenoid (Optional)  
NOTE: To view the Asset Number, press and hold the  
left hidden switch until the display reads ASSET  
NUMBER.Afterreleasingtheswitch,thedisplaywill  
read SERIAL NUMBER then the software version.  
Test Switches:  
The following components can be individually tested:  
Membrane Switches  
Test Frequency: (NOT AVAILABLE ON ITB)  
The following components can be individually tested:  
L/R Smart Funnel read coils.  
* SERVICE NUMBER  
This function allows the operator to enter in the tele-  
phone number to call if service is needed. The service  
number will be displayed anytime there is a fault mes-  
sage displayed.  
* FACTORY DEFAULTS  
This function allows the operator to erase ALL of the  
previouslyenteredrecipesandadmessages.Factory-set  
default values will replace ALL previous settings.  
Procedure to enter the service number:  
1. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads  
ENTER SERVICE #?  
2. Press and release YES. The display will now read  
SCROLTHRU#'SNEXT->NEXTNUMBER,followed  
by 000-000-0000. UP TO 16 CHARACTERS ARE  
AVAILABLE.  
3. Press the SCROL button to scroll through the num-  
bers. When the desired number is shown, press  
and release NEXT to move to the next digit in the  
phone number.  
4. Repeat Step 3 until the entire number is entered.  
5. Press and release DONE. The display will now read  
SERVICE TOOLS?  
Procedure to set factory defaults:  
1. Press and hold the right hidden switch until the  
display reads SET LANGUAGE. Press and release  
the right hidden switch until the display reads FAC-  
TORY DEFAULTS.  
2. Press YES to restore defaults. The display will read  
WILLREPLACEALLBREWSETTINGSfollowedwith  
ARE YOU SURE?  
3. Selecting NO, will exit without resetting. Select  
YES to load the defaults. After factory defaults have  
been restored, the display will return to the MAIN  
SCREEN. The factory default values will have replaced  
ALL previously entered values. It will NOT reset the life  
brew counter. If factory defaults are restored, it will be  
necessary to recalibrate the flow rates.  
41581.2 091609  
Page 28  
TROUBLESHOOTING  
A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems  
encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic  
Technical Service Department.  
Inspection, testing, and repair of electrical equipment should be performed only by qualified service person-  
nel.  
All electronic components have 120-240 volt ac and low voltage dc potential on their terminals. Shorting of  
terminals or the application of external voltages may result in board failure.  
Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If  
an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a  
terminal or crimp.  
Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are  
energized for more than ten minutes without a supply of water.  
The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will  
help to avoid twists and kinks in the tubing.  
Make certain that all plumbing connections are sealed and electrical connections tight and isolated.  
This brewer is heated at all times. Keep away from combustibles.  
WARNING – • Exercise extreme caution when servicing electrical equipment.  
• Unplug the brewer when servicing, except when electrical tests are specified.  
• Follow recommended service procedures.  
• Replace all protective shields or safety notices.  
41581.2 091609  
Page 29  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
Temperature Too Low  
1. Water temperature in the tank  
does not meet the ready tempera-  
ture.  
A) Wait for the brewer to heat to the  
proper temperature.  
B) Disable the BREW LOCKOUT  
function. See page 16 for proce-  
dure.  
Heating Time Too Long  
Fill Time Too Long  
1. Tank Heater failure.  
Service required  
Service required  
2. Control Board/Thermistor fail-  
ure  
1. Water shut off to brewer  
2. Inlet Solenoid failure  
3. Control Board Failure  
4. ON/OFF switch is OFF  
Check water supply shut-off  
Service Required  
Service Required  
Turn switch ON  
Temp Sensor Out Of Range, Check  
For Bad Connections  
1. Temperature Sensor Probe Check wire and connection of both  
wire(s) broken or not making con-  
nection  
blackandwhitewiresoftemperature  
probe.  
Temp Sensor Out Of Range, Check  
Wire For Shorts  
1. Temperature Sensor Probe Check to confirm that wire(s) are  
wire(s) shorted to housing or to  
each other.  
not pinched between two surfaces  
or connected to each other.  
Equipment will not operate  
1. No power or incorrect voltage  
Measure the voltage at the terminal  
block and confirm that it matches  
the voltage specified on the brewer  
data plate withing +/- 10%.  
41581.2 091609  
Page 30  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
1. No water  
REMEDY  
Brew cycle will not start  
Check plumbing and shut-off  
valves  
2. No power or incorrect voltage to  
the brewer  
Check for voltage across the termi-  
nals at the terminal block.  
3. ON/OFF switch  
Test the ON/OFF switch. Refer  
to the test switch procedures on  
page 50.  
4. Brew switch  
Test the BREW switch. Refer to the  
test switch procedures on page  
50.  
5. Brew valve  
Testthebrewvalve. Refertothetest  
outputs procedures on page 48.  
6. Control Board  
Substitute a control board known  
to be in good working order.  
41581.2 091609  
Page 31  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
1. No water  
REMEDY  
Automatic refill will not operate  
or display shows FILL TIME TOO  
LONG  
Check plumbing and shut-off  
valves  
2. Refill probe or Sensitivity set- Remove the strainer and check for  
ting  
obstructions. Clear or replace.  
3. Refill valve  
Check the sensitivity setting. Refer  
to the REFILL function on page  
40. If the left three digit number  
is less than the right number, the  
machine “thinks” it is full and the  
refill valve should be off. If the left  
numberislargerthantheright,then  
the refill valve will automatically be  
turned on to fill the tank. The right  
numberisthethresholdsettingand  
can be adjusted to compensate for  
extremewaterconditions:verypure,  
low conductance water requires a  
higher setting, while high mineral  
content, high conductance water  
requires a lower setting. Note that  
theleftnumberchangesfromahigh  
value when water is NOT touching  
the refill probe to a low valve when  
water IS touching the probe. For  
best operation, the right number  
should be set to a value midway  
between these low and high num-  
bers. Before changing the setting,  
confirm that the refill probe is free  
of scale buildup and the connection  
to it is secure. Test the refill valve.  
Refertothetestoutputsprocedures  
on page 48.  
41581.2 091609  
Page 32  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
Automatic refill will not operate or  
displayshowsFILLTIMETOOLONG  
(Continued)  
RefillvalveDisconnectthebrewer  
from the power source and remove  
wires from refill valve coil. Check  
for continuity across the terminals  
of the solenoid coil. If continuity is  
not present, replace the refill valve.  
If continuity is present, the coil may  
be stuck closed. Shut water off to  
brewer. Press the ON/OFF switch to  
turnoff thebrewer. Openthefaucet  
and drain water down in the tank  
untilowstopsorslowstoatrickle.  
Attach a voltmeter to the terminals  
of the refill solenoid. Connect the  
brewer to the power source. Press  
theON/OFFswitchtoturnthebrewer  
on. Within five seconds, voltage  
should be present at the solenoid  
terminals. If voltage is not present,  
refer to the wiring schematic and  
check the wiring harness.  
4. Control Board  
5. ON/OFF Switch  
Substitute a control board known  
to be in good working order.  
ON/OFF switch must be ON for the  
refill circuit to operate. Turn ON.  
41581.2 091609  
Page 33  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
Water flows into tank continuously 1. Refill valve  
with power removed from brewer.  
Foreign material lodged in valve,  
holding it in open state.  
2. Refill probe or sensitivity set- Check the sensitivity setting. Refer  
ting  
to the REFILL function on page  
40. If the left three digit number  
is less than the right number, the  
machine “thinks” it is full and the  
refill valve should be off. If the left  
numberislargerthantheright,then  
the refill valve will automatically be  
turned on to fill the tank. The right  
numberisthethresholdsettingand  
can be adjusted to compensate for  
extremewaterconditions:verypure,  
low conductance water requires a  
higher setting, while high mineral  
content, high conductance water  
requires a lower setting. Note that  
theleftnumberchangesfromahigh  
value when water is NOT touching  
the refill probe to a low valve when  
water IS touching the probe. For  
best operation, the right number  
should be set to a value midway  
between these low and high num-  
bers. Before changing the setting,  
confirm that the refill probe is free  
of scale buildup and the connection  
to it is secure.  
3. Control Board  
Substitute a control board known  
to be in good working order.  
41581.2 091609  
Page 34  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
Waterwillnotheatordisplayshows 1. Limit Thermostat  
HEATING TIME TOO LONG.  
Remove power from the brewer.  
Check for continuity through the  
limit thermostat. CAUTION: Do not  
eliminate or bypass limit thermo-  
stat. Use only replacement part  
29329.0001.  
2. Temperature probe  
Remove the probe from the grom-  
met and submerge in a water bath  
of approximately 70°F (21°C).  
Connect an ohmmeter to the pins  
in the connector. At 60°F (16°C),  
the reading should be 15.3k 2k  
OHMS, at 70°F (21°C) the reading  
should be 11.8k 2k OHMS, and  
at 80°F (27°C) the reading should  
be 9.3k 2k OHMS. If the probe is  
withintheseparameters, reconnect  
to the control board.  
3. Tank heaters  
4. Control Board  
Remove power from the brewer.  
Check for continuity through the  
tank heaters. If no continuity is  
present, check for a wiring problem  
(consult wiring schematic), then  
replace the tank heater if no wiring  
problem is found.  
Remove power from the brewer.  
Connect a voltmeter across the  
tank heater. Reapply power to the  
brewer and refer to testing outputs  
onpage48. Ifthevoltagemeasured  
when the tank heater is turned on  
is very low or zero, then substitute  
a control board know to be good  
working order.  
41581.2 091609  
Page 35  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
1. Bypass valve  
REMEDY  
No bypass water  
Test the bypass valve. Refer to the  
test outputs procedures on page  
48.  
2. Recipe settings  
1. Lime buildup  
Check to make sure bypass % has  
been set for the current recipe.  
Inspecttheprobeandtankassembly  
for excessive lime deposits. Delime  
as required.  
Spitting or unusual steaming from  
sprayhead or air vent.  
2. Temperature probe  
Remove the probe from the grom-  
met and submerge in a water bath  
of approximately 70°F (21°C).  
Connect an ohmmeter to the pins  
in the connector. At 60°F (16°C),  
the reading should be 15.3k 2k  
OHMS, at 70°F (21°C) the reading  
should be 11.8k 2k OHMS, and  
at 80°F (27°C) the reading should  
be 9.3k 2k OHMS. If the probe is  
withintheseparameters, reconnect  
to the control board.  
3. Control Board  
Remove power from the brewer.  
Connect a voltmeter across the  
tank heater. Reapply power to the  
brewer and refer to testing outputs  
onpage48. Ifthevoltagemeasured  
when the tank heater is turned on  
is very low or zero, then substitute  
a control board know to be good  
working order.  
41581.2 091609  
Page 36  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
Inconsistent beverage level in  
server/dispenser  
1.  
Improper water pressure  
Check operating water pressure to  
the brewer. It must be between 20  
and 90 psi (138 and 620 kPa).  
2.  
Brew valve  
Test the brew valve. Refer to test  
outputs on page 48. Turn the valve  
on for 30 seconds and collect the  
water dispensed from the spray-  
head. Repeat the test several times  
to confirm a consistent volume of  
dispensed water. If not consistent,  
check the valve, tubing and spray-  
head for lime buildup.  
3.  
Bypass valve  
If bypass is being used on the in-  
consistent brewing recipe, test the  
bypass valve. Refer to test outputs  
on page 48. Turn the valve on for  
30 seconds and collect the water  
collected from the funnel. Repeat  
the test several times to confirm  
a consistent volume of dispensed  
water. If not consistent, check the  
valve, tubing and fittings for lime  
buildup.  
4.  
5.  
Lime buildup  
Inspect for lime buildup that could  
block the tank, tank fittings, tubing,  
valves and sprayhead.  
Brew volume adjustment  
Adjust the brew volume, calibrate  
sprayhead and bypass as required  
to achieve the desired volume for  
each brew cycle.  
41581.2 091609  
Page 37  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
1. Brew valve  
REMEDY  
Dripping from sprayhead.  
Repair or replace leaky valve  
Water overflows filter.  
1. Type of paper filter  
BUNN paper filters should be used  
for proper extraction  
2. No sprayhead  
Check sprayhead  
Beverage overflows server.  
1. Beverage left in server from The brew cycle should be started  
previous brew  
only with an empty server under  
the funnel.  
2. Brew volume adjustment  
Adjust the brew volume, calibrate  
sprayhead and bypass as required  
to achieve the desired volume for  
each brew cycle  
Brewer is making unusual noises.  
1. Solenoids  
The mounting screws on the so-  
lenoids must be tight or they will  
vibrate during operation  
2. Plumbing lines  
3. Water supply  
Plumbinglinesshouldnotberesting  
on the countertop.  
The brewer must be connected to a  
cold water line. Water pressure to  
the brewer must not be higher than  
90 psi (620 kPa). Install a regulator  
if necessary to lower the working  
pressure to approximately 50 psi  
(345 kPa).  
4. Tank heaters  
Remove and clean lime off tank  
heaters.  
41581.2 091609  
Page 38  
TROUBLESHOOTING (cont.)  
PROBLEM  
PROBABLE CAUSE  
REMEDY  
Weak beverage.  
1. Type of paper filter  
BUNN paper filters should be used  
for proper extraction  
2. Coffee  
For coffee, a sufficient quantity of  
fresh drip or regular grind should  
be used for proper extraction.  
3. Sprayhead  
4. Funnel Loading  
Bunn-O-Matic sprayhead should  
be used to properly wet the bed of  
ground coffee in the funnel  
The BUNN paper filter should be  
centered in the funnel and the bed  
of grounds leveled by gently shak-  
ing.  
5. Water temperature  
Empty the server, remove its cover,  
and place the server beneath the  
sprayhead.Placeemptyfunnelover  
theserverentrance(notinthefunnel  
rails). Press brew. Check the water  
temperature immediately below  
the sprayhead with a thermometer.  
The reading should not be less than  
195°F (90°C).  
6. Incorrect recipe  
Consider adjusting brew volumes,  
bypass percentage and pulse brew  
routines. ContactBunn-O-Maticfor  
suggestions.  
41581.2 091609  
Page 39  

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