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4. SERVICE PROCEDURES
b)
Check compressor motor thermal protector (49C)
• Check compressor motor
thermal protector. (49C)
• Check compressor motor
magnetic contactor.
(Only outdoor fan does not run.)
D. Check indoor unit P.C.B.
• Check P.C.B. Ass'y.
• Check voltage between
terminals No.2 and No.4 at
terminal plate.
P.C.B. Ass'y is defective.
4
Is temperature of compressor
abnormally high ?
Refrigerant gas shortage.
Compressor is defective.
(52C)
0627_X_S
No voltage appears.
0628_X_S
YES
NO
48
–
–
Charge refrigerant gas.
0626_X_S
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