Bunn TU3Q service manual Start Switch

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SERVICE (cont.)

START SWITCH

FIG. 14 START SWITCH

P2092.40

 

Location:

The start switch is located in the front of the hood, above and to the right of the brew funnel.

Test Procedure:

1.Disconnect the brewer from the power source.

2.Remove the wires from all terminals.

3.Check for continuity across the two terminals on the right side of the switch when it is held in the lower position. Continuity must not be present across these terminals in the upper position.

If continuity is present as described, reconnect the wires, the switch is operating properly.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Remove the wires from the switch terminals.

2.Compress the clips inside the hood and gently push the switch through the opening.

3.Push the new switch into the opening and spread the clips to hold the switch captive in the hood.

4.Refer to Fig. 15 when reconnecting the wires.

WHI/YEL to Brew

Timer TL5

WHI/ORN to Brew

Timer TL3

P2091

FIG. 15 START SWITCH TERMINALS

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10288 031500

 

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Contents TU3Q Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty ContentsIntroduction #00831.0000 #00656.0000 User Notices#03408.0002 #03409.0002 #03408.0000 #03536.0000 #03409.0000 Plumbing Requirements Electrical RequirementsElectrical Hook-Up Initial SET-UP Auto Sweetener SET-UPAdjusting Brew Volumes Auto Sweetener SET-UPAuto Sweetener Cleaning CleaningOperating Controls TEA Brewing Problem Probable Cause TroubleshootingRemedy Probable Cause TroubleshootingProblem RemedyProblem Probable Cause Syphon System Lime Build-up Beverage overflows dispenser Brew TimerDripping from sprayhead DispenserProblem Probable Cause Remedy Service Component AccessBrew Solenoid Valve ServiceTest Procedures Disconnect the brewer from the power source Solenoid valveBrew Timer Early Models Wiring Diagram and check the wiring harnessService Digital Brew Timer Late Models If voltage is as described, proceed to #7Digital Timer Wiring Control Thermostat Control ThermostatLimit Thermostat Limit ThermostatSwitch terminals ON/OFF SwitchRefer to when reconnecting the wires Location On the switch terminalStart Switch Start SwitchTank Heater Sweetener Solenoid Valve Optional OFF/SELECTOR Switch Schematic Wiring Diagram TU3Q Volts AC 2 Wire Single PhaseWire Volts AC