Friedrich ZQ08A10C User Manual

Page 20

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Fails to Start

Check of circuit breaker
and fuse.

Gas leakage of feeler bulb
of thermostat

Check of control switch.

Only fan fails to start.

Improper wiring

Defect of fan motor
capacitor

Resistance irregular motor
( ).
Insulation irregular motor
( ).

Replacement of fan motor

Regular but fails to start

Replacement of compressor
(Locking of rotor, metal)

Improper thermostat setting

Loose terminal connection

Improper wiring

Irregular motor resistance ( )

Irregular motor insulation ( )

Replacement of compressor
(Motor damaged)

Drop of power voltage

Check capacitor.

Replacement

Only compressor fails to
start.

Defect of compressor
capacitor

Check of power source.

Check of control switch
setting.