Bunn TWF service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy

Models: TWF

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TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Brew cycle(s) will not start (cont.)

6. Brew Timer

Refer to Service - Brew Timer (Iced

 

A) Iced Tea

 

 

Tea) for testing procedures. See

 

 

page 20 or 21

 

B) Hot Coffee

Refer to Service - Brew Timer (Hot

 

 

Coffee) for testing procedures. See

 

 

page 17 or 18

 

7. Brew Solenoid Valve

Refer to Service - Brew Solenoid

 

A) Iced Tea

Valve (Iced Tea) for testing proce-

 

 

dures. See page 16

 

B) Hot Coffee

Refer to Service- Brew Solenoid

 

 

Valve (Hot Coffee) for testing pro-

 

 

cedures. See page 15

8.Internal Flow control (.195 GPM) (Hot Coffee Only)

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

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

Brew water is not hot

1. Limit Thermostat

 

Refer to Service - Limit Thermostat

 

CAUTION - Do not eliminate or by-

for testing procedures. See page 25

 

pass limit thermostat. Use only

 

 

BOM

replacement

part

 

#29329.1000

2. Thermal Fuse

CAUTION - Do not eliminate or by- pass thermal fuse.

3. Control Thermostat

Refer to Service - Thermal fuse for testing procedures. See page 29

Refer to Service - Control Thermo- stat for testing procedures. See page 23

 

4.

Tank Heater

Refer to Service - Tank Heater for

 

 

 

testing procedures. See page 28

Dilution (Iced Tea) cycle will not

1.

TEA/OFF/COFFEE Switch

Refer to Service - TEA/OFF/COFFEE

start

 

 

Switch for testing procedures. See

 

 

 

page 26

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10510

071000

 

 

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Bunn TWF service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy