© 2010, IMI Cornelius Inc.
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TROUBLESHOOTING REFRIGERATION SYSTEM
Trouble Probable Cause Remedy
Refrigeration
compressor
does not
operate.
1. Ice bank suf!cient.
2. No water in water tank.
3. Control board power switch on
top of unit in “OFF” position.
4. Unit power cord un-plugged, or
drop-in refrigeration assembly
power cord unplugged.
5. Ice sensor electrically
disconnected.
6. No power source (blown fuse
or tripped circuit breaker).
7. Low/high voltage.
8. Loose, disconnected, or broken
wiring .
9. Overload protector cut out;
overheated compressor.
Condenser fan motor not
operating as required.
10. Inoperative overload protector
or start relay.
11. Inoperative ice bank probe.
12. Inoperative control board.
1. No refrigeration called for.
2. Fill water tank with water as
instructed.
3. Place control board power
switch in “ON” position
(will be a built-in 3-minute
time delay before refrigera-
tion compressor starts).
4. Plug in power cord.
5. Electrically connect or
replace inoperable sensor.
6. Replace fuse or reset circuit
breaker. ( Note: Fuse or
circuit breaker are not part of
unit).
7. Voltage must be 220-
240 Volts.
8. Tighten connections or
replace broken wiring.
9. Compressor will cool enough
to restart, DO not overdraw
cooling capacity of unit.
Refer to “Condenser Fan
Motor Not Operating “ in this
section.
10. Replace inoperative part.
11. Replace ice bank probe.
12. Replace control board.
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