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SM830092
12. SERVICE PROCEDURES
F. Check. auxiliary relay. (1Y or 2Y)
0620_X_S
• Check coil resistance of
auxiliary relay.
(1Y or 2Y)
G. Check fuse on the P.C.B. Ass’y in the indoor unit.
2219_X_S
• Check fuse on the P.C.B.
Ass'y in the indoor unit
for continuity.
• Check resistance of
primary and secondary
winding of transformer.
• Check resistance of indoor
fan motor winding.
When the fuse blows.
OK
OK
• Check coil of compressor
motor magnetic contactor.
(52C)
• P.C.B. Ass'y is defective.
OK