Bunn FMD DBC-3 Operating & Service Manual page 10

TROUBLESHOOTING (cont.)
PROBLEM
Product will not dispense (cont.)
Water is not hot
PROBABLE CAUSE
4. Dispense Solenoid Valve
(Hot or Cold)
5. Solenoid Valve (Inlet)
6. Control Board
7. Overflow Protection Switch
8. Auger Drive
9. Water Strainer
10. Lime build-up
CAUTION - Tank and tank compo-
nents should be delimed regularly
depending on local water condi-
tions. Excessive mineral build-up
on stainless steel surfaces can
initiate corrosive reactions result-
ing in serious leaks.
11. Rinse cycle not run for 12
hours.
12. Transformer
1. Limit Thermostat
CAUTION - Do not eliminate or
bypass limit thermostat. Use only
BOM replacement part
#29329.1000
10
REMEDY
Refer to Service - Dispense
Solenoid Valve for testing proce-
dures. See page 35 or 36
Refer to Service - Solenoid Valve
(Inlet) for testing procedures.
See page 38
Refer to Service - Control Board
and Probe for testing proce-
dures. See page 22
Refer to Service - Overflow
Protection Switch for testing
procedures. See page 33
Refer to Service - Auger Drive.
See page 15
(A) Direction of flow arrow must
be pointing towards dispenser.
(B) Remove the strainer and
check for obstructions. Clear or
replace.
Inspect the tank assembly for
excessive lime deposits. Delime
as required.
Refer to Operations - Rinse
Timer. See page 5
Refer to Service - Transformer
for test procedures. See page 41
Refer to Service - Limit Thermo-
stat for testing procedures. See
page 33
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