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TROUBLESHOOTING REFRIGERATION SYSTEM
Trouble
COMPRESSOR DOES NOT
OPERATE.
COMPRESSOR WILL NOT
STOP AFTER SUFFICIENT
ICE BANK IS PRODUCED.
(NOTE: ICE BANK SHOULD
JUST COVER CONTROL
BULB).
Probable Cause
A.
Ice bank sufficient.
B.
Unit power cord unplugged,
power switch (if applicable) in
" OFF"position, or drop-in
refrigeration assembly power
cord unplugged.
C.
No power source (blown fuse
or tripped circuit breaker).
D.
Inoperative Unit power switch
(if applicable) or power cord
unplugged.
E.
Low voltage.
F.
Loose, disconnected, or
broken wiring.
G.
Overload protector cut out;
overheated compressor.
Condenser fan motor not
operating as required.
H.
Inoperative overload protector
or start relay.
I.
Inoperative ice bank control
probe.
J.
Inoperative compressor.
A.
Ice bank control cap tube
kinked or broken.
B.
Ice bank control stuck in
closed position.
45
Remedy
A.
Refrigeration not called for.
B.
Plug in power cord(s) or place
Unit power switch in " ON"
position.
C.
Replace fuse or reset circuit
breaker. (NOTE: Fuse or circuit
breaker are not part of unit).
D.
Replace power switch or plug Unit
power cord into electrical outlet.
E.
Voltage must be at least 103 volts
(115 VAC unit) or 208 (230 VAC
unit) at compressor terminal when
compressor is trying to start.
F.
Tighten connections or replace
broken wiring.
G.
Compressor will cool enough to
restart. Do not overdraw cooling
capacity of Unit. Refer to
" CONDENSER FAN MOTOR
NOT OPERATING"in this
section.
H.
Replace inoperative part.
I.
Replace ice bank control.
J.
Call service person.
A.
Replace ice bank control.
B.
Replace ice bank control.
312027000
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Table of Contents
Troubleshooting
