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[11 error]
[12 error]
NO
Check indoor main P.C. board (MCC-1370A).
Defect Replace
Check power voltage. Improve line.
Check and eliminate noise, etc.
YES
Is there no turbulence of power supply?
Indoor fan starts rotating by inserting receptacle.
[Check output voltage (DC) of P.C. board fan motor.]
Measure the voltages of the motor connector
CN210 Pin 3 (GND (minus): Black) and Pin 5 (V line (plus): Yellow)
under condition that indoor fan rotates.
DC1.0V or more
6 (Blue)
5 (Yellow)
4 (White)
3 (Black)
2 –
1 (Red)
DC1.0V or less
CN210
Yellow
Black
P.C. board
DC
Defective
indoor main P.C. board
(MCC-1370A)
Defective indoor fan motor