Bunn FMD-3 Operating & Service Manual page 13

TROUBLESHOOTING (CONT.)
PROBLEM
Dispenser is making unusual
noises
Excess dust
Display not lit
PROBABLE CAUSE
1. Plumbing Lines
2. Water Supply
3. Tank Heater
1. Fan
2.Control Board
1. Lamp
2. Lamp Holder
3. Starter - Lamp
4. Ballast
13
REMEDY
Plumbing lines should not be resting
on the counter top.
(A) The dispenser must be connected
to a cold water line
(B) Water pressure to the dispenser
must not exceed 90 psi (620 kPa)
Install a regulator if necessary to
lower the working pressure to ap-
proximately 50 psi (345 kPa).
Remove and clean lime off the tank
heater. See page 37
Refer to Service - Fan for testing
procedures. See page 25
Refer to Service - Control Board for
testing procedures. See page 19
Refer to Service - Lamp, see page
27 for lamp replacement.
Refer to Service - Lamp Holder for
testing procedures. See page 27
Refer to Service - Starter for testing
procedures. See page 30
Refer to Service - Ballast for testing
procedures. See page 18
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