Bunn STFA, STA, SA service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy

Models: SA STFA ST STA STF

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TROUBLESHOOTING (cont.)

 

 

 

 

PROBLEM

PROBABLE CAUSE

 

REMEDY

Brew cycle will not start (cont.)

3. ON/OFF switch

 

Refer to Service - ON/OFF Switch

(ST, STF, STA & STFA)

 

 

 

for testing. See page 17

 

4.

Start switch

 

Refer to Service - Start Switch for

 

 

 

 

testing procedures. See page 19

 

5.

Timer

 

Refer to Service - Timer for testing

 

 

 

 

procedures. See page 22 or 24

 

6.

Solenoid valve

 

Refer to Service - Solenoid Valve

 

 

 

 

for testing procedures. See page

 

 

 

 

18

 

7.

Strainer/flow control

(.222

(A) Direction of flow arrow must

 

GPM)

 

be pointing towards brewer.

(B) Remove the strainer/flow con- trol and check for obstructions. Clear or replace.

Water is not hot

1. Limit thermostat

 

CAUTION - Do not eliminate or

 

bypass limit thermostat. Use only

 

BOM replacement part #29329.

 

1000.

Refer to Service - Limit Thermo- stat for testing procedures. See page 16

2. Control thermostat

Refer to Service - Control Ther-

 

mostat for testing procedures. See

 

page 14

Inconsistent beverage level in dis- penser

3. Tank heater

1.Strainer /flow control (.222 GPM) (ST, STF, STA & STFA)

Refer to Service - Tank Heater for testing procedures. See page 20

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

(B)Remove the strainer/flow con- trol and check for obstruction. Clear or replace.

2. Liquid level board or level probe

Refer to Service - Liquid Level

 

Board for testing procedures. See

 

page 26

Page 8

29251 052500

 

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Bunn STFA, STA, SA service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy