Bunn TU3 service manual TROUBLESHOOTING cont, Problem, Remedy

Models: TU3

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TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

Brew cycle will not start (cont.)

4.

ON/OFF Switch

 

5.

Start Switch

 

6.

Brew Timer

REMEDY

Refer to Service - ON/OFF Switch for testing. See page 24

Refer to Service - Start Switch for testing procedures. See page 26

Refer to Service - Brew Timer for testing procedures. See page 17 or 18

7. Brew Solenoid Valve

Refer to Service - Brew Solenoid

 

Valve for testing procedures. See

 

page 16

8. Internal Flow control (.195 GPM)

Water is not hot

1. Limit Thermostat

 

CAUTION - Do not eliminate or by-

 

pass limit thermostat or thermal

 

cut-off. Use only BOM replacement

 

part 29329.1000

(A)Direction of flow arrow must be pointing towards brewer.

(B)Remove the flow control and check for obstructions. Clear or re- place.

Refer to Service - Limit Thermostat for testing procedures. See page 23

 

2.

Control Thermostat

 

3.

Tank Heater

Dilution cycle will not start

1. ON/OFF Switch

 

2.

Start Switch

 

3.

Dilution Timer

Refer to Service - Control Thermo- stat for testing procedures. See page 20

Refer to Service - Tank Heater for testing procedures. See page 28

Refer to Service - ON/OFF Switch for testing procedures. See page 24

Refer to Service - Start Switch for testing procedures. See page 26

Refer to Service - Dilution Timer for testing procedures. See page 22

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031804

 

 

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Bunn TU3 service manual TROUBLESHOOTING cont, Problem, Remedy