12. SERVICE PROCEDURES

F. Check. auxiliary relay. (1Y or 2Y)

Check coil resistance of auxiliary relay.

(1Y or 2Y)

0620_X_S

G.Check indoor fan motor thermal protector (49FMI)

• Disconnect the socket from 9P (WHT) connector.

• Check the continuity between No. 8 and No.9 poles of the 9P socket.

No continuity.

The thermal protector (49FMI)

 

 

 

 

 

 

 

is operated.

 

 

 

 

 

 

 

 

 

 

Check fan casing

 

 

 

 

 

 

Fan cannot

 

 

 

 

Remove foreign

 

 

 

 

 

for foreign matter

 

 

• Check fan rotation.

 

 

 

 

 

 

matter or repair.

be rotated.

 

 

on the inside.

 

 

Rotate the fan gently once

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or twice by hand.

 

 

 

 

 

 

 

 

 

 

Fan motor burnout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

or foreign matter

 

 

Repair or replace.

 

 

 

 

 

 

 

 

 

 

in bearing.

 

 

 

• Check fan motor capacitor.

 

 

 

 

 

 

0621_X_S

 

 

 

 

 

 

 

 

 

 

H. Check fuse on the P.C.B. Ass’y in the indoor unit.

Check fuse on the P.C.B. Ass'y in the indoor unit for continuity.

When the fuse blows.

Check transformer. (TR1)

OK

Check resistance of indoor fan motor winding.

(FMI)

OK

• Check resistance of louver

motor winding.

(LM)

 

 

OK

 

• Check resistance of drain

pump winding.

(DP)

 

 

 

 

OK

 

Check coil of compressor motor magnetic contactor.

(52C)

OK

• P.C.B. Ass'y is defective.

(XS Type only)

1034_X_S

SM830078

– 54 –

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Image 54
Sanyo C4232, CL4232 Check. auxiliary relay Y or 2Y, Check fuse on the P.C.B. Ass’y in the indoor unit, XS Type only

CL4232, C4232 specifications

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