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3.2.2 E6----IDU ventilation failure (PG and DC fan motor only)
Air Conditioner Service Manual
Start
Display E6
Turn the fan blades by
hand while power-off
condition
Can the fan blades run
smoothly?
Yes
Fan motor well
connected to PCB
Yes
Multi-meter check resistance
of fan motor, is there open or
short circuit of winding?
No
Replace IDU PCB
End
No
Adjust the motor and blade
assembly so that rotor can
run smoothly.
No
E6 disappear?
Check and reconnect
No
E6 disappear?
Yes
Replace fan motor
E6 disappear?
No
Yes
Yes
Yes
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