McQuay M5MAC Guide de dépannage télécharger pdf (Page 84)

McQuay Service Guide Book

Condenser

fan contactor

Coil burnt

Contact faulty

Fan motor faulty

Other electrical

component faulty

Compressor

contactor

Coil burnt

Contact faulty

Fan motor faulty

Open compressor

windings

Change the contactor

Change the contacts

Repair or change the motor

contactor

Repair or change if necessary

Change the contactor

Change the contacts

Change the compressor

Correct the wiring

The most common causes of air conditioner failure to ‘start’ are:

a) Voltage not within ± 10% of the rated voltage.

b) Power supply interrupted

c) Improper control settings

d) Air conditioner is disconnected from main power source

e) Fuse blown or circuit breaker off.

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McQuay M5MAC Guide de dépannage Page 84