4. Service procedures
7 Solenoid coil of the electronic refrigerant | *Measure the coil resistance. |
control valve (ERCV) ………… Indoor unit |
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•Measure the resistance between No. 5 (GRY lead wire) and other terminals (another color of lead wires) of 5P (WHT) plug connected to the solenoid coil.
Refer to
8 Compressor motor (CM) ……… Outdoor unit | *Measure the coil resistance. |
•In case of single -phase compressor
Remove the cover of compressor terminal and measure the resistance between terminals.
Refer to
9Compressor motor magnetic contactor (52C) ………… Outdoor unit
•Measure the resistance between A (ORG lead wire) and B (GRY lead wire) terminals on the compressor motor magnetic contactor.
Refer to
•Check the continuity between contactors.
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| the magnetic |
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| R – U | S – V | T – W |
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| contactor |
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| no press |
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| press | YES | YES | YES |
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0 Solenoid coil of | *Measure the coil resistance. |
•Measure the resistance between No.1 (BLK lead wire) and No.2 (BLK lead wire) terminals of 2P (BLK) socket connected to the solenoid coil.
Refer
Section
1
2
3
4
SM830076
– 91 –