8-4-2. Indoor fan does not rotate.
< Main Detection Points >
•
Is the control panel reliably connected with the electromotor ?
Is it loose ? Is the connecting sequence correct ?
•
Is the input voltage within the normal range (measure the voltage between L and N of the wiring block XT
with AC voltage gauge.) ?
< Malfunction Diagnosis Process >
Energize the unit and
start it.
Finish
Check power supply.
Replace main board
of indoor unit.
Adjust connecting state.
Replace motor.
Measure voltage between
N1 and 3 of
indoor wiring block.
Voltage > 200V ?
Yes
No
Yes
Yes
Yes
No
No
No
Check the connecting
state of the connecting
terminal.
Connection reliable ?
Remove the error ?
Remove the error ?
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