Air Conditioner Service Manual
42
3.2.3 E6----IDU ventilation failure (PG and DC fan motor only)
Start
Fan motor well
connected to PCB
Display E6
Check and reconnect
Multi-meter check resistance
of fan motor, is there open or
short circuit of winding?
Replace IDU PCB
Replace fan motor
Yes
Yes
No
No
End
Turn the fan blades by
hand while power-off
condition
Can the fan blades run
smoothly?
Adjust the motor and blade
assembly so that rotor can
run smoothly.
E6 disappear?
No
No
Yes
Yes
E6 disappear?
E6 disappear?
Yes
No
Yes
