Bunn FMD-4, FMD-5 service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy

Models: FMD-4 FMD-5

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TROUBLESHOOTING (cont.)

PROBLEM

Product will not dispense (cont.)

PROBABLE CAUSE

REMEDY

5.

Solenoid Valve (Inlet)

Refer to Service - Solenoid Valve

 

 

(Inlet) for testing procedures. See

 

 

page 37

6.

Control Board #1 and Probe

Refer to Service - Control Board and

 

 

Probe for testing procedures. See

 

 

page 20

7.Auger Drive

8.Water Strainer

9.Lime build-up

CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can initiate corro- sive reactions resulting in serious leaks.

Refer to Service - Auger Drive. See page 13 & 15

Remove the strainer and check for obstructions. Clear or replace.

Inspect the tank assembly for exces- sive lime deposits. Delime as re- quired.

Water is not hot

10. Transformer

Refer to Service - Transformer for

 

 

testing procedures. See page 41

1.

Limit Thermostat

Refer to Service - Limit Thermostat

CAUTION - Do not eliminate or by-

for testing procedures. See page 31

pass limit thermostat. Use only BOM

 

replacement part #29329.1000

 

2.

Control Thermostat

Refer to Service - Control Thermo-

 

 

stat for testing procedures. See page

 

 

19

3.

Tank Heater

Refer to Service - Tank Heater for

 

 

testing procedures. See page 38

9

35135 012103

 

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Bunn FMD-4, FMD-5 service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy