36
Check of outdoor fan motor
I
Outdoor fan motor does not operate.
Is there voltage 230V
AC between indoor
terminal block S1 and
S2?
Replace the
outdoor fan motor.
Does the left lamp of
OPERATION INDICATOR
lamp on the indoor unit
light up?
Is the resistance of fan
motor normal?
3 minutes after, is there
voltage 230V AC
between CN771
2
and
3
on the power P.C.
board?
Disconnect the connector CN771 on the power P.C.
board.
Disconnect the connector (CN61) between
compressor and power transistor module.
Turn ON the power supply and press the
EMERGENCY OPERATION switch.
Yes
Yes
Yes
No
No
CN771
Power P.C. board
1 2 3
Fan
motor
Outdoor terminal block
S3
S2
S1
Check the resistance of fan motor. (Refer to 11-5.)
Replace the
power P.C. board.
Rectify indoor/ outdoor
connecting wire.
No
Replace the indoor
electronic control
P.C. board.
Replace the outdoor
fan motor.
No
Yes
Indoor/ outdoor
connecting
wire
MUZ-GA25VA
-
MUZ-GA25VAH
-
E1
E1
OB379 --2qxp 05.1.17 16:38 Page 36
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