Electrical System - Perlick HA24BB Service Manual

Residential Refrigeration
and Front Venting Commercial Refrigeration
Service Manual

Electrical System

PROBLEM
Compressor is not running. No power to compressor.
Condenser fan is not run-
ning.
Evaporator fan is not run-
ning.
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CAUSE
No call for cooling from control.
Incorrectly wired connections in machine
compartment.
Incorrect control settings.
Faulty control.
Starting device is not operational (start
relay/capacitor).
Faulty compressor.
No power to fan
Incorrectly wired.
Fan is obstructed.
Fan still does not run.
Faulty/defective door switch or wiring to
door switch.
Missing or misaligned door switch plunger
bracket.
No power to evaporator fan motor.
Fan is obstructed.
Incorrectly wired.
Troubleshooting Guide - Electrical System
SOLUTION
Check wiring to compressor.
Check where power is interrupted between
controller and compressor.
Check control settings or for bad control.
Verify wiring per wiring diagram,
Section 8.2.
Return to factory settings.
See Section 8.6.
Refer to Control not functioning.
Replace compressor electrical components.
Check compressor, see Section 7.9
Restore power to unit.
Refer to information plate. See
Section 1.0 and Table 8-1
Verify wiring per wiring diagram,
Section 8.2 .
Remove obstructions.
Replace condenser fan per Section 7.0 .
Check wiring and continuity of switch con-
tacts. Replace switch if defective.
Install bracket and/or align.
Restore power to unit.
Refer to information plate. See
Section 1.0 and Table 8-1
Remove obstruction.
Verify wiring per wiring diagram,
Section 8.2 .
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