Check Point 1 : Check rotation of Fan
Check Point 2 : Check ambient temp. around motor
OK
OK
1. Fan rotation failure 2. Fan motor winding open 3. Motor protection by surrounding temperature rise
4. Control PCB failure
Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)
>> If Fan 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.
02-15
Check Point 3 : Replace Controller PCB
If Check Point 1- 2 do not improve the symptom, replace Controller PCB.
Indoor Unit Controller PCB Circuit
Indoor Fan Motor
When the condition that actual frequency of Indoor Fan is
below 1/3 of target frequency is continued more than 56 seconds.
Trouble shooting 11
INDOOR UNIT Error Method:
Indicate or Display:
Refer to error code table.
Indoor Fan Motor abnormal
Detective Actuators: Detective details:
Forecast of Cause:
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