1.Items to be checked
1 Whetherindo orfan motoris connected withcon nector
a rightway
2 Whether the input voltage of AC power is right or not
3 Whether the operation capacitor of indoor fan motor
Is connected with connector
a rightwayor not
2.Flow chart of malfunction diagnosis
X8
in
CN10 CN11 in
1-2-2 Indoor fan motor does not run
After draw out power supply plug and more five seconds,
insert plug again
Replace PCB
PCB failure
Whether input voltage of fan motor is satisfied or not
Whether the core output on controller is normal or not?
Micro-control core failure
Please refer to the description of flow of failure
diagnosis in last page
Whether luminous diode tube LED lights on or not
Fan capacitor failure
Fan motor failure
Replace indoor fan motor
Replace capacitor
YES
NO
NO
YES
YES
YES
NO
YES
YES
3