Bunn TU3Q service manual Service, Component Access

Models: TU3Q

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SERVICE

This section provides procedures for testing and replacing various major components used in this brewer should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel. The brewer should be disconnected from the power source when servicing, except when electrical tests are required and the test procedure spe- cifically states to plug-in the brewer.

COMPONENT ACCESS

WARNING - Disconnect the brewer from the power source before the removal of any panel or the replace- ment of any component.

All components are accessible by the removal of the top cover and rear inspection panel.

The top cover is attached with four #6-32 screws. Removal of the top cover will allow access to ON/OFF (UNSWEET/OFF/SWEET) switch, START switch, brew timer, brew solenoid, control thermostat, limit ther- mostat and tank heater.

Contents

 

Brew Solenoid Valve

15

Brew Timer (Early Models)

16

Digital Brew Timer (Late Models)

17

Control Thermostat

19

Limit Thermostat

20

ON/OFF Switch

21

Start Switch

22

Tank Heater

23

Sweetener Solenoid Valve

24

OFF/SELECTOR Switch (Sweetener Option)

25

Wiring Diagrams

26

FIG. 1 COMPONENT ACCESS

P2092.40

 

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10288 031604

 

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Bunn TU3Q service manual Service, Component Access