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Self-Contained Flaked Ice Maker Service Manual
© 2004, IMI Cornelius Inc. - 15 - Publication Number: 166240010SER
TROUBLESHOOTING
Trouble Probable Cause Remedy
Unit will not run A. On-off switch in ”off” position. A. Turn switch to ”on”.
B. Defective on-off switch. B. Check and replace.
C. Blown fuse. C. Replace fuse and check for
cause of blown fuse.
D. Thermostat set too warm for
ambient.
D. Adjust colder.
E. Power relay contacts corroded. E. Check and clean.
F. Defective thermostat. F. Check and replace.
G. Loose electrical connection. G. Check wiring.
H. Gearmotor overload protector
has cut off machine.
H. Turn switch to off then to on.
Compressor cycles
intermittently.
A. Low voltage A. Check line voltage
B. Dirty condenser B. Clean condenser
C. Air circulation restricted C. Remove restriction
D. Defective condenser fan motor D. Check and replace
E. Defective relay, overload
protector or starting capacitor.
E. Check and replace
F. Loose electrical connection F. Check wiring
Making wet ice. A. Surrounding air temperature
too high
A. Correct or move unit
B. High water level in float
reservoir
B. Lower water level
C. Dirty condenser C. Clean condenser
D. Faulty compressor D. Check and replace*
E. Refrigerant leak E. Check and repair
F. ”O” ring leaking at bottom of
evaporator shell
F. Check and replace
*NOTE: Special care must be used with R404a (HP62) charged systems using (POE) Polyolester oil.
The refrigeration system must not be open longer than 15 min., and the appropriate drier must be
used due to the moisture absorption properties of the POE oil.
Unit runs but makes no
ice.
A. Leak in refrigerant system A. Check and repair
B. Moisture in system B. Check, dehydrate and add
drier to system
C. No water C. Check water supply