Bunn FMD-5, FMD-4 service manual Troubleshooting Cont Problem, Probable Cause, Remedy

Models: FMD-4 FMD-5

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TROUBLESHOOTING (CONT.)

PROBLEM

Dispenser is making unusual noises

Excess dust

Display not lit

PROBABLE CAUSE

REMEDY

1.

Plumbing Lines

Plumbing lines should not be rest-

 

 

ing on the counter top.

2.

Water Supply

(A) The dispenser must be connected

 

 

to a cold water line

 

 

(B) Water pressure to the dispenser

 

 

must not exceed 100 psi (690 kPa).

 

 

Install a regulator if necessary to

 

 

lower the working pressure to ap-

 

 

proximately 50 psi (345 kPa).

3.

Tank Heater

Remove and clean lime off the tank

 

 

heater. See page 38

1.

Fan

Refer to Service - Fan for testing

 

 

procedures. See page 25

1.

Lamp

Refer to Service - Lamp, see page 29

 

 

for lamp replacement.

2.

Lamp Holder

Refer to Service - Lamp Holder for

 

 

testing procedures. See page 29

3.

Starter - Lamp

Refer to Service - Starter for testing

 

 

procedures. See page 30

4.

Ballast

Refer to Service - Ballast for testing

 

 

procedures. See page 18

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35135 012103

 

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Bunn FMD-5, FMD-4 service manual Troubleshooting Cont Problem, Probable Cause, Remedy