Trouble shooting 14
OUTDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause:
Check Point 2 : Check ambient temp. around motor
OK
OK
Indicate or Display:
Outdoor Unit Fan Error
Outdoor Unit Inverter PCB
Outdoor Fan Motor
1. Fan Motor failure 2. Motor protection by surrounding temperature rise 3. Inverter PCB failure
Check Point 1 : Check rotation of Fan
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.
Check Point 3 : Check output voltage of Inverter PCB
If the voltage is not correct, replace Inverter PCB.
When outdoor fan rotation speed is less than 100rpm in 20 seconds
after fan motor starts, fan motor stops.
After fan motor restarts, if the same operation within 60sec is repeated
consecutively 3 times, compressor and fan motor stops.
If repeats 5 times in a row, compressor and fan motor stops
permanently.
02-16
Refer to error code table.
BLACK
BROWN
RED
WHITE
YELLOW
CN800
1 2
3
4 5
6
1 2
3
4 5
6
FM
FAN MOTOR
Check outdoor unit circuit diagram and the voltage.
(Measure at Inverter PCB side connector)
>>1 pin(Red) - 4 pin(Black) DC250V ~ 400V
>>4 pin(Black) - 5 pin(White) DC15V 2V
7
7
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