Bunn FMD-4 Beverage Dispenser User Manual


 
10
TROUBLESHOOTING (CONT.)
PROBLEM
Product overflows container
Dispenser is making unusual
noises
Excess dust
Display not lit
PROBABLE CAUSE
1. Dispense Switch
2. Dispense Solenoid Valve
1. Plumbing Lines
2. Water Supply
3. Tank Heater
1. Fan
2. A) Hopper Drive Board - FMD-1
B) Control board
1. Lamp
2. Lamp Holder
3. Starter - Lamp
4. Ballast
REMEDY
Refer to Service - Dispense Switch for
testing procedures. See page 28
Remove the solenoid valve and clear
any obstructions. Rebuild or replace
the valve if necessary. See page 47
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 50
Refer to Service - Fan for testing
procedures. See page 32
Refer to Service - Hopper Drive
Board for testing procedures. See
page 35
Refer to Service - Control Board for
testing procedures. See page 20
Refer to Service - Lamp, see page
39 for lamp replacement.
Refer to Service - Lamp Holder for
testing procedures. See page 39
Refer to Service - Starter for testing
procedures. See page 40
Refer to Service - Ballast for testing
procedures. See page 19
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