Bunn TU3 Manuale di Servizio

TU3HOTLIQUID!CAUTIONOPERATING & SERVICE MANUALBUNN-O-MATIC CORPORATIONPOST OFFICE BOX 3227SPRINGFIELD, ILLINOIS 62708-3227PHONE: (217) 529-6601

Page 10TROUBLESHOOTING (cont.)PROBLEMPROBABLE CAUSEREMEDYBrew cycle will not start (cont.)Water is not hotDilution cycle will not start4. ON/OFF Switc

Page 11TROUBLESHOOTING (cont.)PROBLEMPROBABLE CAUSEREMEDYDilution cycle will not start (cont.)Inconsistent beverage level in dis-penserConsistently hi

Page 12TROUBLESHOOTING (cont.)PROBLEMSpitting or excessive steamingDrip-out time too longDripping from sprayheadWater flows into tank continuously(ON/

Page 13TROUBLESHOOTING (cont.)PROBLEMBeverage overflows dispenserWeak beveragePROBABLE CAUSE1. Dispenser2. Brew Timer3. Brew Solenoid Valve4. Dilution

Page 14REMEDYThe BUNN® paper filter must becentered in the funnel and the bedof grounds leveled by gently shak-ing.The nut on the solenoid(s) must be

Page 15SERVICEThis section provides procedures for testing andreplacing various major components used in thisbrewer should service become necessary.

Page 16SERVICE (cont.)BREW SOLENOID VALVEFIG. 2 BREW SOLENOID VALVEP1277.40Location:Viewing the brewer from the rear the brew sole-noid valve is mount

Page 17SERVICE (cont.)BREW TIMER (Early Models)FIG. 4 BREW TIMERP1276.40Location:The brew timer is located in the hood. It consistsof the left dial p

Page 1810225 071500SERVICE (cont.)DIGITAL BREW TIMER (Late Models)FIG. 6 DIGITAL BREW TIMERP2202.40Location:The timer is located in the hood, on the

Page 1910225 103000To increase a brew volume, place the ON/OFFswitch in the "ON" position, press and hold the STARTswitch until three clic

Page 2CONTENTSIntroduction ...2Warranty ...

Page 20SERVICE (cont.)CONTROL THERMOSTATFIG. 8 CONTROL THERMOSTATP1276.40Location: The control thermostat is located inside hood onthe right side just

Page 21SERVICE (cont.)DILUTION SOLENOID VALVEFIG. 10 DILUTION SOLENOID VALVEP1277.40Location:Viewing the brewer from the rear the dilution so-lenoid i

Page 22SERVICE (cont.)DILUTION TIMERFIG. 12 DILUTION TIMERP1276.40Location:The dilution timer is located inside the hood on theright side. It consist

Page 23SERVICE (cont.)LIMIT THERMOSTATFIG. 14 LIMIT THERMOSTATP1276.40Location:The limit thermostat is located inside the hood onthe tank lid.Test Pro

Page 24QUICK BREW SERVICE (cont.)ON/OFF SWITCH (SELECTOR SWITCH - OPTIONAL)FIG. 16 ON/OFF SWITCHP1187.40Location:The ON/OFF switch is located in

Page 25Removal and Replacement:1. Remove the wires from the switch terminals.2. Compress the clips inside the hood and gentlypush the switch through t

Page 26START SWITCHHOTLIQUID!CAUTIONFIG. 18 START SWITCHP1187.40Location:The start switch is located in the front of the hood,above and to the right o

Page 27SERVICE (cont.)10225 031804Location:Viewing the brewer from the rear the sweetenersolenoid is mounted on the right side of the solenoidmountin

Page 28SERVICE (cont.)TANK HEATERFIG. 23 TANK HEATER TERMINALSP1284FIG. 22 TANK HEATERLocation:The tank heater is located inside the tank and se-cured

Page 2910225 071500

Page 310225 03180400831.0000F 3/98 ©1988 BUNN-O-MATIC CORPORATIONREAD THE ENTIRE OPERATING MANUALBEFORE BUYING OR USING THIS PRODUCTTHIS APPLIANC

Page 3010225 071500

Page 3110225 02180427432.0000D 02/04 © 1996 BUNN-O-MATIC CORPORATIONBRN/WHIWHI/BLUWHI/VIOWHI WHIWHI/BLUWHI/YELWHI/ORNSCHEMATIC WIRING DIAGRAMTU3 W/

Page 3210225 071500

Page 4ELECTRICAL REQUIREMENTSCAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.120V model brewers requ

Page 5INITIAL SET-UPCAUTION - The brewer must be disconnected from the power source throughout the initial set-up, except whenspecified in the instruc

Page 6INITIAL SET-UP (cont.)29. If not, unplug the brewer and remove the top lid.30. Adjust the delay knob of the timer on the right side of the hood

Page 710225 031804AUTO SWEETENER SET-UP (cont.)5. Plug brewer into the power source.6. Place an empty reservoir under the dilution nozzle of the brew

Page 810225 031804CLEANING (cont.)2. Place the ON/OFF switch in the "OFF" position. Remove and thoroughly rinse the sprayhead. The holes

Page 9TROUBLESHOOTINGA troubleshooting guide is provided to suggest probable causes and remedies for the most likely problemsencountered. If the prob