Bunn ITCB Operating & Service Manual
  1. Manuals
  2. Brands
  3. Bunn Manuals
  4. Coffee Maker
  5. ITCB
  6. Operating & service manual

Bunn ITCB Operating & Service Manual

Bunn operating & service manual itcb itcb-dv infusion series
Hide thumbs Also See for ITCB:
Table of Contents

Advertisement

Quick Links

See also: Service & Repair Manual , Programming Manual
ITCB
ITCB-DV
Infusion Series
®
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601
FAX: (217) 529-6644
www.bunn.com
36748.0000
03/07 ©2004 Bunn-O-Matic Corporation

Advertisement

Table of Contents
loading

Related Manuals for Bunn ITCB

Summary of Contents for Bunn ITCB

  • Page 1 ITCB ITCB-DV Infusion Series ® OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www.bunn.com 36748.0000 03/07 ©2004 Bunn-O-Matic Corporation...

  • Page 2: Warranty

    SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND. In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

  • Page 3: Table Of Contents

    The Infusion Series combines BrewWISE, CDBC and Tea Brewers into one. ITCB is able to brew both tea and coffee with recipe settings and has the following features: Pre-Infusion and Pulse Brew, quick and standard brew, and BrewWISE. It has an LCD for digital readout and programming along with the Smart Funnel options for coffee.

  • Page 4: User Notices

    USER NOTICES Carefully read and follow all notices in this manual and on the equipment. All labels on the equipment should be kept in good condition. Replace any unreadable or damaged labels. #00656.0000 #00658.0000 #00986.0000 37881.0000 Page 4 36748 101505...
  • Page 5 USER NOTICES (CONT.) 120/208V 120/240V 120V #34056.0001 For 120/208V or 120/240 volt operation, replace Power Supply Cord only with Bunn-O-Matic part number 01699.0000. #34072.0000 #29710.0009 #03408.0000 #03409.0000 #29710.0010 Page 5 36748 101505...

  • Page 6: Electrical Requirements

    ELECTRICAL REQUIREMENTS WARNING - The brewer must be disconnected from the power source until specified in Initial Set-Up. Requirements for brewers without an attached cord set are as follows: Refer to Data Plate on the Brewer, and local/national electrical codes to determine circuit requirements. 120V.

  • Page 7: Plumbing Requirements

    " (9.5 mm) for more than 25 feet (7.62 m) from the in the water line will facilitate moving the brewer to clean the counter top. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow.

  • Page 8: Operating Controls

    A. ON/OFF SWITCH Pressing the "ON/OFF" pad will alternately turn the brewer on and off. Pressing this pad during the brew cycle will interrupt the brew cycle, stopping the flow of water. Pressing this pad during programming of the brewer will exit the setup and return to the main screen.

  • Page 9: Initial Set-Up

    Insert an empty funnel into the funnel rails. Place an empty server under the funnel. Connect the brewer to the power source. Make sure the ON/OFF switch is ON (LED will be lit). Water will flow into the tank and stop when the tank is filled to its capacity.

  • Page 10: Tea Brewing

    WITHOUT A SMART FUNNEL AND G9-2T DBC GRINDER: 1. Begin each brew cycle with a clean empty brew funnel. 2. Insert a BUNN filter into the funnel. 3. Pour the fresh coffee into the filter and level the bed of grounds by gently shaking.

  • Page 11: Cleaning

    3. The use of a damp cloth rinsed in any mild, nonabrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Do NOT clean this equipment with a water jet device. CAUTION – DO NOT KEEP BREWED ICED TEA OVERNIGHT. THE SERVER MUST BE CLEANED DAILY.

  • Page 12: Glossary

    GLOSSARY AD CARD: An assembly consisting of computer chips and an instruction label. Used for loading advertising messages into the brewer. AUTO PULSE BREW SETUP: The setting of a pulse brew routine by entering in the total desired brew time. The brewer will then calculate and perform a pulse brew routine using a predetermined formula.
  • Page 13 GLOSSARY (Continued) RECIPE: Set of brewing parameters stored in the brewer. The parameters are unique for each tea and coffee name. Tea recipes include brew ounces, dilution ounces, dilution delay, pulse brew, and drip time. Coffee recipes include brew ounces, pulse brew and drip time. RECIPE CARD: An assembly consisting of a computer chip and an instruction label.

  • Page 14: Programming

    Using the menu-driven display on the front of the brewer, the operator has the ability to alter or modify various brewing parameters such as brew temperatures, brew volumes, dilution volumes, pulse brew, etc. This allows for the precise brewing of various flavors of tea and coffee. Programming of the brewer is achieved by entering a certain function.

  • Page 15: Programming The Brewer

    The programming of the brewer is divided into two levels. There is one function in Level 1. All other functions are accessed in Level 2. The following function screens are in order of appearance. Each screen will have instructions on how to access and the procedures to program the various functions of the brewer.
  • Page 16 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - FLOW CHART PROGRAMMING FUNCTIONS - LEVEL I PROGRAMMING FUNCTIONS - LEVEL 2 SET LANGUAGE? BREW BREW BREW SET NEW RECIPE? BREW BREW BREW ENABLE SANITATION DONE BREW BREW BREW SPRAY OZ/M: XX.X DONE BREW BREW BREW...

  • Page 17: Brew Lockout

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL I 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: 2.

  • Page 18: Set Language

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 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. Release when the display reads: SET LANGUAGE This function allows the operator to select the language used for the display.

  • Page 19: Units

    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 raeds UNITS.

  • Page 20: Review Recipes

    DOES THE GRINDER HAVE THE NAME IN ITS MEMORY? DON'T KNOW GO TO SET NEW RECIPE, PAGE 21 AND FOLLOW THE INSTRUCTIONS REFER TO NAME LIST IN GRINDER MANUAL CONTACT BUNN-O-MATIC FOR ASSISTANCE Page 20 REVIEW RECIPES BREW BREW BREW PRESSING NO WILL...

  • Page 21: Assign Recipe

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ASSIGN RECIPE This function allows the operator to assign recipes to the three brew buttons. Standard recipes (TEA 1, TEA 2, TEA 3, HOT TEA, ICED COFFEE, NO-NAME COFFEE) and any saved recipes from a Smart Funnel or Recipe Card can be assigned to a brew button.

  • Page 22: Set New Recipe

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET NEW RECIPE (to set a new COFFEE recipe using a Smart Funnel or RECIPE CARD) Using a Smart Funnel and a G9-2T DBC or MHG Grinder: This function allows the operator to set BREW VOL- UMES, PULSE BREW TIMES AND DRIP OUT TIMES for each coffee name preset in the grinder’s memory.
  • Page 23 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 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 small batch size to grind. It is not necessary to have coffee beans in the hopper(s) in order to program the brewer.
  • Page 24 VOLUMES, PULSE BREW TIMES and DRIP OUT TIME for that particular coffee name. These can all be loaded in seconds. Contact Bunn-O-Matic Corporation for the availability of RECIPE CARDS. NOTE: Instructions to program the brewer and grinder are printed on the RECIPE CARD, along with the coffee name that is being programmed.
  • Page 25 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 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 (COFFEE NAME) SHOW QUIT SAVE.

  • Page 26: Brew Oz

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Procedure for modifying TEA recipes: Tea recipes: BREW OZ: Range: OFF, 10.0 oz to 135.0 oz (.3-4.0 L) for both batch sizes This function allows adjustment of the brew (tea con- centrate) volumes for each batch.
  • Page 27 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Tea recipes: DILUTE OZ: Range: 0.0 oz to 580.0 oz (0-17.1 L) for both batch sizes This function allows adjustment of the dilution volumes for each batch. NOTE: If the brewer is already on the DILUTE OZ: screen, skip steps 1 through 6, and proceed directly to step 7.

  • Page 28: Dilute Delay

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Tea recipes: DILUTE DELAY Range: OFF to 10 minutes for both batch sizes This function allows the operator to adjust the timing for the start of the dilution water. The OFF setting will begin dilution flow immediately after the brew button is pressed (simultaneously with the brew water).
  • Page 29 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) TEA RECIPES: SET PULSE BREW This function allows the operator to program the brewer to “pulse” the sprayhead flow on and off during a brew cycle (start and stop the flow of water out of the spray- head).
  • Page 30 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Setting Pulse Brew – EASY Pulse Brew NOTE: If the brewer is already on the SET PULSE BREW screen, skip steps 1 through 9, and proceed directly to step 10. 1.
  • Page 31 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Setting Pulse Brew – MANUAL Pulse Brew NOTE: If the brewer is already on the SET PULSE BREW screen, skip steps 1 through 9, and proceed directly to step 10. 1.

  • Page 32: Pulse Brew

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) REVIEW RECIPES BREW BREW BREW PRESSING NO WILL TEA 1 ADVANCE TO NEXT MODIFY SHOW NEXT FUNCTION SCREEN BREW BREW ADVANCE TO THE RECIPE TO BE MODIFIED (RECIPE NAME) MODIFY SHOW NEXT BREW BREW SET BREW OZ XX.X...

  • Page 33: Drip Time

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) TEA RECIPES: DRIP TIME This function allows the operator to adjust the DRIP TIME (time from end of sprayhead flow to when liquid stops dripping from the funnel). When the brew cycle is complete, the display will show DRIPPING and will countdown the time until the funnel empties.

  • Page 34: Brew Oz

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Procedure for modifying COFFEE recipes: Coffee recipes: BREW OZ: Range: OFF 10.0 oz to 135.0 oz (0.0-4.0L) for both batch sizes This function allows adjustment of the brew volumes for each batch. 1.
  • Page 35 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) COFFEE RECIPES: SET PULSE BREW This function allows the operator to program the brewer to “pulse” the sprayhead flow on and off during a brew cycle (start and stop the flow of water out of the spray- head).
  • Page 36 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Setting Pulse Brew – EASY Pulse Brew NOTE: If the brewer is already on the SET PULSE BREW screen, skip steps 1 through 6, and proceed directly to step 7. 1.
  • Page 37 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Setting Pulse Brew – MANUAL Pulse Brew NOTE: If the brewer is already on the SET PULSE BREW screen, skip steps 1 through 6, and proceed directly to step 7. 1.

  • Page 38: Pulse Brew

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) REVIEW RECIPES BREW BREW BREW PRESSING NO WILL TEA 1 ADVANCE TO NEXT MODIFY SHOW NEXT FUNCTION SCREEN BREW BREW ADVANCE TO THE RECIPE TO BE MODIFIED (RECIPE NAME) MODIFY SHOW NEXT BREW BREW SET BREW OZ XX.X...

  • Page 39: Drip Time

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) COFFEE RECIPES: DRIP TIME This function allows the operator to adjust the DRIP TIME (time from end of sprayhead flow to when liquid stops dripping from the funnel). When the brew cycle is complete, the display will show DRIPPING and will countdown the time until the funnel empties.

  • Page 40: Ready Degree Xxx

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) MASTER TEMP This function allows the operator to adjust the brew water temperature in the tank. This also sets the hot water faucet dispense temperature. Procedure for setting the Master Temp Range: 185°...

  • Page 41: Enable Ads

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) READY DEGREE This function allows the operator to set the minimum temperature allowable to start a brew cycle. The range can be from 2° to 20° F within the set temperature. The water must be at the READY temperature or higher for the display to indicate READY TO BREW.
  • Page 42 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABLE ADS This function allows the operator to choose whether 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.

  • Page 43: Enable Sanitation

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABLE ADS (Continued) Procedure to READ in a New Ad: NOTE: Saving a new ad will erase any previously saved ad in the brewer’s memory. 1. From the NEW AD? screen, press and release CARD.

  • Page 44: Enable Energy Saver

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABL SANITATION This function allows the operator to enable the sanita- tion function and set the time before a cleaning alert will be displayed. Procedure for enabling sanitation: Range: 0.0 to 72.0 hrs. 1.
  • Page 45 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABLE ENERGYSAVR This function allows the operator to enable the mode function and set the idle time. Once the set idle time has expired, the operator can choose to have the heat- ers either turn off, or reduce the tank holding temp to 140°...

  • Page 46: Refill

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABLE FRESH TIMER This function allows the operator to enable the Freshness Alert and set the expiration time. The expiration time is the amount of time the product is allowed to sit in the server/dispenser before a fresh batch is brewed.
  • Page 47 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) REFILL Range: 0 to 155 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 have different conductivities.
  • Page 48 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SPRAY OZ/M This function allows the operator to view or to enter the actual flow rate coming out of the sprayhead. This is NOT used to change the actual flow rate, but to tell the internal controller how fast the water is flowing.

  • Page 49: Calibrate Flow

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) DILUTE OZ/M 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 change the actual flow rate, but to tell the internal controller how fast the water is flowing.

  • Page 50: Brew Counters

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) CALIBRATE FLOW This function allows the operator to enter the actual flow rate of the sprayhead and the dilution by dispensing both separately for one minute. The volumes are then entered into the brewer.
  • Page 51 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) CALIBRATE FLOW (Continued) Procedure to calibrate the dilution flow rate: 1. Place a container, accurately graduated and with a minimum capacity of 130 ounces, beneath the funnel. NOTE: If the display is already on the DILUTION CAL screen, skip steps 2 &...

  • Page 52: Set Recipe Temps

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) BREW COUNTERS This function allows the operator to track the total num- ber of brew cycles completed, as well as the number of batches brewed using each of the brew buttons. There are three resettable counters, and one life counter that is not resettable.
  • Page 53 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SET RECIPE TEMPS This function allows the operator to set separate tem- peratures for each selected recipe. 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.

  • Page 54: Asset Number

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ASSET NUMBER This function allows the operator to enter in the ma- chine's asset number. This can be useful for tracking the usage or service of an individual machine within a group.

  • Page 55: Service Number

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SERVICE NUMBER This function allows the operator to enter in the telephone number to call if service is needed. The service num- ber will be displayed anytime there is a fault message displayed.
  • Page 56 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SERVICE TOOLS This function allows the testing of individual components and the ability to check switches for proper function. This function also tests the funnel sensor coil’s frequency (diagnostic tool for troubleshooting purposes only). Procedure to test components and outputs: The following components can be individually tested: Brew Valve...
  • Page 57 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) P2883 Page 57 36748 041504...

  • Page 58: Test Switches

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Procedure to test switches: The following switches can be individually tested: Half Batch Full Batch Left Hidden Brew A Brew B Brew C On/Off 1. Press and hold the right hidden button until the dis- play reads SET LANGUAGE.
  • Page 59 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) Procedure to test coil frequency: 1. Press and hold the right hidden button until the dis- play reads SET LANGUAGE. Press the right hidden button until the display reads SERVICE TOOLS. 2.

  • Page 60: Factory Defaults

    PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) FACTORY DEFAULTS This function allows the operator to erase ALL of the previously entered recipes and ad messages. Factory-set default values will replace ALL previous settings. Procedure to set factory defaults: 1.
  • Page 61 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) FACTORY DEFAULT VALUES Brew Lockout - Disabled Language - English Units - English SWITCH RECIPE Brew A – TEA 1 Brew B – HOT TEA Brew C – NO-NAME COFFEE TEA 1 RECIPE: BREW VOLUMES Half Batch –...
  • Page 62 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) FACTORY DEFAULT VALUES (Continued) HOT TEA RECIPE: BREW VOLUMES Half Batch - 64 OZ Full Batch - 64 OZ PULSE BREW TIMES Half Batch - Manual :30/:15/:15 Full Batch - Manual :30/:15/:15 DRIP OUT TIMES Half Batch - 1:15 Full Batch - 1:15...

  • Page 63: 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.
  • Page 64 TROUBLESHOOTING (cont.) PROBLEM Temperature Too Low Heating Time Too Long Fill Time Too Long Temp Sensor Out Of Range, Check For Bad Connections Temp Sensor Out Of Range, Check Wire For Shorts Equipment will not operate PROBABLE CAUSE 1. Water temperature in the tank does not meet the ready tempera- ture.
  • Page 65 TROUBLESHOOTING (cont.) PROBLEM Brew cycle will not start PROBABLE CAUSE 1. No water 2. No power or incorrect voltage to the brewer 3. ON/OFF switch 4. Brew switch 5. Brew valve 6. Control Board Page 65 REMEDY Check plumbing and shut-off valves Check for voltage across the termi- nals at the terminal block.
  • Page 66 TROUBLESHOOTING (cont.) PROBLEM Automatic refill will not operate or display shows FILL TIME TOO LONG PROBABLE CAUSE 1. No water 2. Tank drain clamp 3. Water Strainer 4. Refill probe or Sensitivity set- ting 5. Refill valve Page 66 REMEDY Check plumbing and shut-off valves Check tank drain clamp...
  • Page 67 TROUBLESHOOTING (cont.) PROBLEM Automatic refill will not operate or display shows FILL TIME TOO LONG (Continued) PROBABLE CAUSE 5. Refill valve (Continued) 6. Control Board 7. ON/OFF Switch Page 67 REMEDY secure. Test the refill valve. Refer to the test outputs procedures on page 56.
  • Page 68 TROUBLESHOOTING (cont.) PROBLEM Water flows into tank continuously with power removed from brewer. PROBABLE CAUSE 1. Refill valve 2. Refill probe or sensitivity set- ting 3. Control Board Page 68 REMEDY Foreign material lodged in valve, holding it in open state. Check the sensitivity setting.
  • Page 69 TROUBLESHOOTING (cont.) PROBLEM Water will not heat or display shows HEATING TIME TOO LONG. PROBABLE CAUSE 1. Limit Thermostat 2. Temperature probe 3. Toggle switch Page 69 REMEDY Remove power from the brewer. Check for continuity through the limit thermostat. CAUTION: Do not eliminate or bypass limit thermo- stat.
  • Page 70 TROUBLESHOOTING (cont.) PROBLEM Water will not heat or display shows HEATING TIME TOO LONG. (Continued) PROBABLE CAUSE 4. Tank heaters 5. Control Board Page 70 REMEDY Remove power from the brewer. Check for continuity between the white terminal of the terminal block (or red terminal on 208/240V mod- els) and the black wire on the relay on the control board (Toggle switch...
  • Page 71 TROUBLESHOOTING (cont.) PROBLEM Dilution cycle will not start PROBABLE CAUSE 1. Dilution valve 2. Recipe settings 3. Strainer Page 71 REMEDY Test the dilution valve. Refer to the test outputs procedures on page 56. Check to make sure the current recipe has a dilution volume set.
  • Page 72 TROUBLESHOOTING (cont.) PROBLEM Spitting or unusual steaming from sprayhead or air vent. Dripout time too long PROBABLE CAUSE 1. Lime buildup 2. Temperature probe 3. Control Board 1. Funnel tip Page 72 REMEDY Inspect the probe and tank assembly for excessive lime deposits. Delime as required.
  • Page 73 TROUBLESHOOTING (cont.) PROBLEM Inconsistent beverage level in server/dispenser PROBABLE CAUSE 1. Strainer 2. Improper water pressure 3. Brew valve 4. Dilution valve 5. Lime buildup 6. Brew volume adjustment Page 73 REMEDY Direction of flow arrow must be pointing towards the brewer. Re- move the strainer and check for obstructions.
  • Page 74 1. Beverage left in server from previous brew 2. Brew volume adjustment Page 74 REMEDY Repair or replace leaky valve BUNN paper filters should be used for proper extraction Check sprayhead The brew cycle should be started only with an empty server under the funnel.
  • Page 75 4. Funnel Loading 5. Water temperature 6. Incorrect recipe Page 75 REMEDY BUNN paper filters should be used for proper extraction For coffee, a sufficient quantity of fresh drip or regular grind should be used for proper extraction. For tea, a sufficient quantity of fresh, loose tea leaves should be used for proper extraction.
  • Page 76 TROUBLESHOOTING (cont.) PROBLEM Brewer is making unusual noises. PROBABLE CAUSE 1. Solenoids 2. Plumbing lines 3. Water supply 4. Tank heaters Page 76 REMEDY The mounting screws on the so- lenoids must be tight or they will vibrate during operation Plumbing lines should not be resting on the countertop.

  • Page 77: Wiring Diagrams

    SCHEMATIC WIRING DIAGRAM ITCB-DV LIMIT THERMOSTAT BLK-14 BLK-14 BLU-14 FUNNEL SENSOR J1-1 J1-2 WHI/VIO BLU-14 BLK-14 N.O. WHI/VIO J17-1 WHI/GRN WHI/BLU J17-5 J17-10 J17-14 J15-1 TRANSFORMER 10VA J15-5 J13-1 LEVEL PROBE J3-1 J3-5 J3-8 CONTROL PANEL ASSY J2-1 BREW J2-5...
  • Page 78 Page 78 36748 111904...
  • Page 79 SCHEMATIC WIRING DIAGRAM ITCB-C-DV LIMIT THERMOSTAT BLK-14 BLU-14 BLK-14 FUNNEL SENSOR J1-1 J1-2 WHI/VIO BLU-14 BLK-14 N.O. WHI/VIO J17-1 WHI/GRN WHI/GRN WHI/BLU J17-5 J17-10 J17-14 J15-1 TRANSFORMER 10VA J15-5 J13-1 LEVEL PROBE J3-1 J3-5 J3-8 CONTROL PANEL ASSY J2-1 BREW...

This manual is also suitable for:

Itcb, itcb-dvItcb-dvInfusion itcb-dvInfusion itcb

Table of Contents