30
Yes
Indoor unit operates, while outdoor unit does not.
Compressor does not operate.
Fan motor does not operate.
No
Is the voltage of contactor
terminals between A1 and A2
220-240V?
Connection is defective.
Connection is defective.
Yes
No
Connection is defective.
No
Yes
No
Is the connecting wire between the
indoor and outdoor units connected
properly?
Yes
No
Does the contactor operate?
Yes
Is the connector connected properly?
Contactor is defective.
Yes
No
Is the output voltage of contactor
correct?
Connection is defective.
Check the compressor.
Yes
Contactor is defective.
No
Are the wires connected to the
compressor properly?
Is the connecting wire between the
indoor and outdoor units connected
properly?
Fan motor is defective.
Deicer P.C. board is defective.
Yes
No
Deicer P.C. board is defective.
Is the resistance of fan motor
normal?
From the preceding page.
OC282-A--1.qxp 03.1.28 4:29 PM Page 30