Bunn TU3 service manual Service, Component Access, Contents

Models: TU3

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SERVICE

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 switch, start switch, brew timer, dilution timer, control thermostat, limit thermostat and tank heater,

The rear inspection panel is attached with six #8- 32 screws. Removal of the rear panel will allow access to the brew solenoid valve, dilution solenoid valve and the sweetener solenoid valve (optional), .195 GPM flow control and check valve.

Contents

 

Brew Solenoid Valve

16

Brew Timer (Early Models)

17

Digital Brew Timer (Late Models)

18

Control Thermostat

20

Dilution Solenoid Valve

21

Dilution Timer

22

Limit Thermostat

23

ON/OFF Switch

24

Start Switch

26

Sweetener Solenoid Valve (Optional)

27

Tank Heater

28

Wiring Diagrams

29

T

 

FIG. 1 COMPONENT ACCESS

P1187

 

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10225

031804

 

 

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Bunn TU3 service manual Service, Component Access, Contents