Detective Actuators: Detective details:
Forecast of Cause:
Check Point 1 : Check rotation of Fan
Check Point 2 : Check ambient temp. around motor
OK
OK
Indoor unit Controller PCB
Indoor unit Power PCB
Indoor fan motor
1. Fan motor failure 2. Motor protection by surrounding temperature rise
3. Power PCB failure 4. Controller PCB failure
Check if the Fan motor is lock.
(Can the Fan be rotated by hand when operation is off.)
Check the Fan loosening.
(Lock-nut loosening, defective propeller fan)
>> If Fan motor or bearing is abnormal, replace it.
Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)
>> Upon the temperature coming down, restart operation.
When the condition that actual rev. of Indoor Fan is 1/3 or less.
Or the condition of fan speed is 0rpm is continued more than 56 seconds.
02-14
Trouble shooting 12
INDOOR UNIT Error Method:
Indicate or Display:
Indoor unit fan motor error
Refer to error code table.
OK
Check Point 4 : Replace Power PCB and Controller PCB
If Check Point 1~3 do not improve the symptom,
replace Power PCB and Controller PCB.
Check Point 3 : Check Indoor unit fan motor
Check Indoor unit fan motor. (PARTS INFORMATION 4)
>>If Indoor unit fan motor is abnormal, replace Indoor unit fan motor.
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