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Bunn ITCB, ITCB-DV manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    OPERA TING & SER VICE MANU AL ITCB ITCB-DV Infusion Series ® BUNN-O-MA TIC CORPORA TION POST OFFICE BO X 3227 SPRINGFIELD , ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 36748.0000F 0 7 /0 6 ©2004 Bunn-O-Matic Corporation www .bunn.com[...]

  • Page 2

    Page 2 BUNN-O-MA TIC COMMERCIAL PRODUCT W ARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specifi ed below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 years parts and [...]

  • Page 3

    Page 3 INTRODUCTION This equipment will brew either tea or coffee into an awaiting dispenser or reservoir . It can be easily confi gured for 120V 15 amp, 120/208V 20 amp or 120/240V 20 amp. The brewer may have an auxillary hot water faucet. It is only for indoor use on a sturdy counter or shelf. The Infusion Series combines BrewWISE, CDBC and T ea[...]

  • Page 4

    Page 4[...]

  • Page 5

    Page 5 USER NOTICES (CONT .) F or 120/208V or 120/240 v olt operation, replace P ower Supply Cord only with Bunn-O-Matic par t n umber 01699.0000. #34072.0000 #29710.0009 #34056.0001 /PTIONAL&IELD7IRING 6 !7 0(?[...]

  • Page 6

    Page 6 ELECTRICAL HOOK-UP CAUTION – Improper electrical installation will damage electronic components. 1. An electrician must provide electrical service. 2. Determine the available on-site electrical service. 3. Select the desired unit voltage based on the available on-site electrical service. 4. Using a voltmeter , check the voltage and color c[...]

  • Page 7

    Page 7 PLUMBING HOOK UP 1. Flush the water line and securely attach it to the inlet fi tting at the bottom rear of the brewer . 2. T urn on the water supply . PLUMBING REQUIREMENTS This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi (138 and 620 kPa) from a 1 ⁄ 2 " (12.7 mm) or larger supply li[...]

  • Page 8

    Page 8 OPERA TING 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 fl ow of water . Pressing this pad during programming of the brewer will exit the setup and return to the main screen. B. PROGRAMMING (left)[...]

  • Page 9

    Page 9 1. Insert an empty funnel into the funnel rails. 2. Place an empty server under the funnel. 3. Connect the brewer to the power sour ce. Make sure the ON/OFF switch is ON (LED will be lit). 4. Water will fl ow into the tank and stop when the tank is fi lled to its capacity . Display will show PLEASE WAIT ...T ANK FILLING until tank is fi l[...]

  • Page 10

    Page 10 36748 101505 TEA BREWING 1. Begin each brew cycle with a clean empty brew funnel and server . (Be sure the server lid doesn’t inter fere with the fl ow of dilution water .) 2. Insert a BUNN fi lter into the funnel. 3. Pour the packet of loose fresh tea leaves into the fi lter . Approximately three to fi ve ounces is recommended for th[...]

  • Page 11

    Page 11 CLEANING CAUTION – CLEAN AND SANITIZE YOUR ICED TEA BREWER DAIL Y 1. Remove and thoroughly clean the entire brew funnel. The funnel tip and screen must be free from any tea particles or residue. Reassemble the funnel. 2. Remove and thoroughly rinse the sprayhead. The holes must be open and clear of any mineral deposits. Wipe the sprayhead[...]

  • Page 12

    Page 12 GLOSSAR Y 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

    Page 13 prevent a funnel overfl ow . RECIPE : Set of brewing parameters stored in the brewer . The parameters are unique for each tea and coffee name. T ea 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 [...]

  • Page 14

    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 fl avors of tea and coffee. Programming of the brewer is achieved by en[...]

  • Page 15

    Page 15 MAIN SCREEN This screen will be shown when the brewer is ready for use. The screen displays the water temperature in the tank. When the water in the tank reaches the correct set temperature, the display will change from HEA TING to READY TO BREW . PROGRAMMING LOCKOUT SWITCH ((located on the memory module board prior to S/N ICB0007479 - loca[...]

  • Page 16

    Page 16 BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C SPRA Y OZ/M: XX.X (-) DONE (+) (-) DONE (+) CALIBRA TE FLO W? NO YES BREW COUNTERS? NO YES PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL I PROGRAMMING FUNCTIONS - FLOW CHART PROGRAMMING FUNCTIONS - LEVEL 2 DILUTE OZ/M: XX.[...]

  • Page 17

    Page 17 BREW A BREW B BREW C Press here for NO BREW LOCK OUT? NO DONE YES Press here for YES Press here for DONE 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. T o access this function s[...]

  • Page 18

    Page 18 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 desir[...]

  • Page 19

    Page 19 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 unti[...]

  • Page 20

    Page 20 RECIPE CHART T ea 1 Iced Coffee T ea 2 No Name Coffee T ea 3 Hot T ea PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) REVIEW RECIPES (Modify recipe, set up standard recipes) This function has three parts: 1. It allows the operator to view the brew settings for the various tea and coffee recipes stored into the brewer [...]

  • Page 21

    Page 21 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. Only one r[...]

  • Page 22

    Page 22 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’[...]

  • Page 23

    Page 23 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 9. When fi nished, press the other batch size and repeat step #8. 10. When fi nished setting both batch sizes, press and release DONE . The display should read 2 BA TCHES DONE? 11. If both batch sizes are not correct press and release NO to return to the BREW OZ setup [...]

  • Page 24

    Page 24 2. Position the RECIPE CARD vertically , so that the top end of the CHIP is beneath the SENSING COIL (located on the middle of the underneath side of the front display panel). 3. After a short pause the display will read CARD CON- T AINS RECIPE FOR then will change to (COFFEE NAME) SHOW QUIT SA VE . All brewing parameters for that coffee ?[...]

  • Page 25

    Page 25 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C EXIT TO NEXT FUNCTION SCREEN REVIEW RECIPES? NO YES TEA 1 MODIFY SHO W NEXT (COFFEE NAME) MODIFY SHO W NEXT SCROLLS THRU TEA 1, TEA 2, TEA 3, HOT TEA, ICED COFFEE and NO-NAME COFFEE RECIPES SET UP BREW VOLUME[...]

  • Page 26

    Page 26 Procedure for modifying TEA recipes: T ea 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. 1. Press and hold the right hidden button until the dis- play reads SET LANGUAGE. Press the right hidden button until the display[...]

  • Page 27

    Page 27 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) T ea 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. 1. [...]

  • Page 28

    Page 28 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) T ea recipes: DILUTE DELA Y 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 fl ow immediately after the brew button is pressed (simultaneously [...]

  • Page 29

    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 fl ow on and off during a brew cycle (start and stop the fl ow of water out of the spray- head). This feature allows the ability to “fi ne-tune” the br[...]

  • Page 30

    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. Press and hold the right hidden button until the dis- play reads SET LANGUAGE . Press the right hidden button u[...]

  • Page 31

    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. Press and hold the right hidden button until the dis- play reads SET LANGUAGE . Press the right hidden button[...]

  • Page 32

    Page 32 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) P2864 BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C REVIEW RECIPES NO YES TEA 1 MODIFY SHO W NEXT (RECIPE NAME) MODIFY SHO W NEX[...]

  • Page 33

    Page 33 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 fl ow 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 funne[...]

  • Page 34

    Page 34 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. Press and hold the right hidden button until the dis- play reads SET LAN[...]

  • Page 35

    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 fl ow on and off during a brew cycle (start and stop the fl ow of water out of the spray- head). This feature allows the ability to “fi ne-tune” the[...]

  • Page 36

    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. Press and hold the right hidden button until the dis- play reads SET LANGUAGE. Press the right hidden button unt[...]

  • Page 37

    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. Press and hold the right hidden button until the dis- play reads SET LANGUAGE. Press the right hidden button u[...]

  • Page 38

    Page 38 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) P2868 BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C REVIEW RECIPES NO YES TEA 1 MODIFY SHO W NEXT (RECIPE NAME) MODIFY SHO W NEX[...]

  • Page 39

    Page 39 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 fl ow 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 fu[...]

  • Page 40

    Page 40 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 T emp Range: 185° to 207° F (85°-97° C) 1. Press and hold the right hidden butto[...]

  • Page 41

    Page 41 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 . If brew lockout is enabled, the brewing process will not start below t[...]

  • Page 42

    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 . This message will b[...]

  • Page 43

    Page 43 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C BREW A BREW B BREW C ENABLE ADS NO DONE YES WRITE T OP LINE? NO YES NEW AD? CARD NO WRITE 2 LINES 16 CH[...]

  • Page 44

    Page 44 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABL SANIT A TION 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. Press and hold the right hidden button until the dis- play r[...]

  • Page 45

    Page 45 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ENABLE ENERGYSA VR 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° F (60° C). Procedure to en[...]

  • Page 46

    Page 46 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. Procedure for enabling/setting [...]

  • Page 47

    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 refi ll cir cuit. This is mainly a troubleshooting feature. Water in different geographical locations can have different conductivities. By adjusting the sensitivity of the refi[...]

  • Page 48

    Page 48 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) SPRA Y OZ/M This function allows the operator to view or to enter the actual fl ow rate coming out of the sprayhead. This is NOT used to change the actual fl ow rate, but to tell the internal controller how fast the water is fl owing. Procedure to adjust the sprayhead[...]

  • Page 49

    Page 49 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) DILUTE OZ/M This function allows the operator to view or to enter the actual fl ow rate coming out of the dilution nozzle. This is NOT used to change the actual fl ow rate, but to tell the internal controller how fast the water is fl owing. Procedure to adjust the dil[...]

  • Page 50

    Page 50 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) CALIBRA TE FLOW This function allows the operator to enter the actual fl ow rate of the sprayhead and the dilution by dispensing both separately for one minute. The volumes are then entered into the brewer . Procedure to calibrate the sprayhead fl ow rate: 1. Place a c[...]

  • Page 51

    Page 51 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) CALIBRA TE FLOW (Continued) Procedure to calibrate the dilution fl ow 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 & 3 and pr[...]

  • Page 52

    Page 52 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. Procedure to vi[...]

  • Page 53

    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 butto[...]

  • Page 54

    Page 54 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 36748 042905 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. Procedure to enter the asset number: 1. Press and hold the right hidd[...]

  • Page 55

    Page 55 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 ser vice num- ber will be displayed anytime there is a fault message displayed. (See T roubleshooting on page 63) Procedure to enter the service number: 1.[...]

  • Page 56

    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[...]

  • Page 57

    Page 57 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) P2883 36748 041504[...]

  • Page 58

    Page 58 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. Press the right hidden button until the display [...]

  • Page 59

    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. Press and release YES . The display should now read TEST OUTPUTS? Press and releas[...]

  • Page 60

    Page 60 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) F ACTOR Y DEF AUL TS 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. Press and hold the right hidden button until the di[...]

  • Page 61

    Page 61 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) F ACTOR Y DEF AUL T V ALUES 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 – 38 OZ Full Batch – 76 OZ DILUTION VOLUMES Half Batch – 160 OZ [...]

  • Page 62

    Page 62 PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) BREW VOLUMES Half Batch - 64 OZ Full Batch - 64 OZ PULSE BREW TIMES Half Batch - Manual :40/:10/:26 Full Batch - Manual :40/:10/:26 DRIP OUT TIMES Half Batch - 1:00 Full Batch - 1:00 Master T emp - 205° Ready T emp - 5° Enable Ads - Disabled Enable Sanitation - Disable[...]

  • Page 63

    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 T echnical Ser vice Department. • Inspection, testing, and repair of electrical equipment should be performed only[...]

  • Page 64

    Page 64 PROBABLE CAUSE REMEDY PROBLEM TROUBLESHOOTING (cont.) T emperature T oo Low Heating Time T oo Long Fill Time T oo Long T emp Sensor Out Of Range, Check For Bad Connections T emp Sensor Out Of Range, Check Wire For Shorts Equipment will not operate 1. Water temperature in the tank does not meet the ready tempera- ture. 1. T ank Heater failur[...]

  • Page 65

    Page 65 TROUBLESHOOTING (cont.) PROBABLE CAUSE REMEDY PROBLEM Check plumbing and shut-off valves Check for voltage across the termi- nals at the terminal block. T est the ON/OFF switch. Refer to the test switch procedures on page 58. T est the BREW switch. Refer to the test switch procedures on page 57. T est the brew valve. Refer to the test outpu[...]

  • Page 66

    Page 66 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Check plumbing and shut-off valves Check tank drain clamp Direction of fl ow arrow must be pointing towards direction of water fl ow . Remove the strainer and check for obstructions. Clear or replace. Check the sensitivity setting. Refer to the REFILL function on page 47. If the left t[...]

  • Page 67

    Page 67 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY secure. T est the refi ll valve. Refer to the test outputs procedures on page 56. Refi ll valve – Disconnect the brewer from the power source and remove wires from refi ll valve coil. Check for continuity across the terminals of the solenoid coil. If continuity is not present, repla[...]

  • Page 68

    Page 68 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water fl ows into tank continuously with power removed from brewer . 1. Refi ll valve 2. Refi ll probe or sensitivity set- ting 3. Control Board Foreign material lodged in valve, holding it in open state. Check the sensitivity setting. Refer to the REFILL function on page 47. If the l[...]

  • Page 69

    Page 69 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water will not heat or display shows HEA TING TIME TOO LONG. 1. Limit Thermostat 2. T emperature probe 3. T oggle switch 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 293[...]

  • Page 70

    Page 70 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 (T oggle switch must be in 120/208-240V position on 208V and 240V models). There should be a low OHM reading. If not continuity is present, check for[...]

  • Page 71

    Page 71 Dilution cycle will not start 1. Dilution valve 2. Recipe settings 3. Strainer T est the dilution valve. Refer to the test outputs procedures on page 56. Check to make sure the current recipe has a dilution volume set. Coffee recipes will not have dilu- tion. Direction of fl ow arrow must be pointing towards the brewer . Re- move the strai[...]

  • Page 72

    Page 72 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Spitting or unusual steaming from sprayhead or air vent. Dripout time too long 1. Lime buildup 2. T emperature probe 3. Control Board 1. Funnel tip Inspect the probe and tank assembly for excessive lime deposits. Delime as required. Remove the probe from the grom- met and submerge in a w[...]

  • Page 73

    Page 73 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Inconsistent beverage level in server/dispenser Direction of fl ow arrow must be pointing towards the brewer . Re- move the strainer and check for obstructions. Clear or replace. Check operating water pressure to the brewer . It must be between 20 and 90 psi (138 and 620 kPa). T est the[...]

  • Page 74

    Page 74 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dripping from sprayhead. Water overfl ows fi lter . Beverage overfl ows server . Repair or replace leaky valve BUNN paper fi lters should be used for proper extraction Check sprayhead The brew cycle should be started only with an empty server under the funnel. Adjust the brew volumes[...]

  • Page 75

    Page 75 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Weak beverage. BUNN paper fi lters should be used for proper extraction For coffee, a suffi cient quantity of fresh drip or regular grind should be used for proper extraction. For tea, a suffi cient quantity of fresh, loose tea leaves should be used for proper extraction. Bunn-O-Matic[...]

  • Page 76

    Page 76 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Brewer is making unusual noises. 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. The brewer must be connected to a cold water line. Water pressure to the brewer must not be higher than 90 p[...]

  • Page 77

    Page 77 MEMORY BOARD SCHEMA TIC WIRING DIA GRAM ITCB-D V 36460.0000C 08/04 ©2004 BUNN-O-MA TIC CORPORA TION L1 BLU-14 BLU-14 LIMIT THERMOST A T WHI WHI WHI/VIO WHI/VIO WHI/VIO WHI WHI REFILL DISPENSE J1-1 J1-2 J17-1 J17-5 J15-1 J15-5 J17-10 J17-14 C O N T R O L P C B O A R D COM N.O. VIO BLK BLK-14 BLK-14 BLK-14 WHI/GRN WHI/GRN WHI/BLU WHI WHI/BLU[...]

  • Page 78

    Page 78 36748 111904 -%-/29 "/!2$ 3#(%-! 4)#7)2).'$)! '2!-I4#"! I4#"" "Ú"5../-! 4)##/20/2! 4)/. ",5 ",5 ,)-)4 4(%2-/34 ! 4 2%$ 2%$ 7()6)/ 7()6)/ 7()6)/ 2%$ 2%$ 2%&a[...]

  • Page 79

    Page 79 36748 111904 MEMORY BOARD SCHEMA TIC WIRING DIA GRAM ITCB-C-D V 36460.0002A 11/04 ©2004 BUNN-O-MA TIC CORPORA TION L1 BLU-14 BLU-14 LIMIT THERMOST A T WHI WHI WHI/VIO WHI/VIO WHI/VIO WHI WHI REFILL DISPENSE J1-1 J1-2 J17-1 J17-5 J15-1 J15-5 J17-10 J17-14 C O N T R O L P C B O A R D COM N.O. VIO BLK BLK-14 BLK-14 BLK-14 WHI/GRN WHI/GRN WHI/[...]