TCL U-MATCH-R32 SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL
91
3.3.3 E6----IDU ventilation failure (PG and DC fan motor only)
Start
Display E6
Turn the fan blades by
hand while power-off
No
Can the fan blades run
smoothly?
Adjust the motor and blade
assembly so that rotor can
run smoothly.
Yes
No
Yes
E6 disappear?
Fan motor well
connected to PCB
Check and reconnect
Yes
No
Yes
E6 disappear?
Multi-meter check resistance
of fan motor, is there open or
short circuit of winding?
Yes
Replace fan motor
No
E6 disappear?
Yes
No
Replace IDU PCB
End