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184617-02
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INSTALLATION AND SERVICE MANUAL 917N-CMT, 927CMT, 957CMT
PROBLEM
PROBABLE CAUSE
REMEDY
12 Service Troubleshooting Charts
– continued
1.
Spigot switch rod engaged.
2.
Spigot switch (side or center) out of
adjustment or defective.
3.
Faulty thermostat or bulb not deep enough
in well.
4.
Starter contact points stuck.
5.
Faulty time delay.
6.
Suction pressure too low, refrigeration
system.
Machine runs
continually and
product continues
to get colder.
1.
Close spigot completely.
2.
Adjust or replace spigot switch. (Sec.7.3)
3.
Check movister, time delay and
thermostat, replace as needed.
4.
Replace starter, and test head switch
operation.
5.
Replace time delay.
6.
See Maintenance and Adjustments for
setting. (See Sec. 8.2 or 8.3)
1.
Cylinder thermostat erratic or set too cold.
2.
Faulty time delay. (Unit runs all the time.)
3.
Low suction pressure.
4.
Spigot switch electrically or mechanically
stuck closed. (Unit runs all the time.)
Dispensed
product too hard.
1.
Adjust thermostat or replace.
2.
Replace time delay. (See Sec. 8.1)
3.
See Maintenance and Adjustments for
setting. (See Sec. 8.2 or 8.3)
4.
Adjust or replace spigot switch
1.
Automatic expansion valve incorrectly set
or erratic in operation.
2.
Leak in refrigeration system resulting in
little or not refrigeration.
3.
Thermostat set too high or faulty.
Dispensed
product too soft
(Product
temperature
above 21°F)
1.
Adjust or replace expansion valve. (See
Section 8.2 or 8.3)
2.
Find refrigerant leak. Remove charge into
a refrigerant recovery/recycling unit.
Repair leak, evacuate and recharge
system.
3.
Adjust thermostat or replace. (See Sec.
8.1)
1.
Product too cold.
2.
Reverse rotation on beater.
3.
MTS pressure too low.
Product
dispenses
slowly out of
dispensing
head.
1.
See "Dispensed Product Too Hard" this
section.
2.
Correct rotation to clockwise as viewed
from the front of freezer.
3.
Check dispensing pressure.