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4. SERVICE PROCEDURES
(4)
Indoor unit does not run.
(Indoor fan and louver motor do not run.
P.C.B. Ass'y is defective.
(5)
Some part does not operate.
(1) Indoor fan does not run.
• Check fan rotation.
Rotate the fan gently once
or twice by hand.
• Check resistance of fan
motor winding.
• Check fan motor capacitor.
Relay RY1 or RY2 on the
P.C.B. Ass'y is defective.
(2) Louver motor does not run.
• Check resistance of
louver motor winding.
P.C.B. Ass'y or remote
control unit is defective.
0630_X_S
Fan cannot
be rotated.
OK
OK
OK
0632_X_S
Check fan casing
for foreign matter
on the inside.
Fan motor burnout
or foreign matter
in bearing.
49
–
–
Remove foreign
matter or repair.
Repair or replace.
0631_X_S
4
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