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 Motor Error
Outdoor Unit Inverter PCB Circuit
Outdoor Fan Motor
1. Fan rotation failure 2. Motor protection by surrounding temperature rise 3. Inverter PCB failure
Check Point 1 : Check rotation of Fan
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.
Check Point 3 : Check Output Voltage of Inverter PCB
Check outdoor unit circuit diagram and the voltage.
(Measure at Inverter PCB side connector)
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
3 times in a row, compressor and fan motor stops.
If and repeats 5 times in a row, compressor and fan motor stops
permanently.
Read wire DC voltage
Red - Black
White - Black
300 400V
15 1.5V
02-17
CN800
1
2
3
4
5
6
7
BLACK
WHITE
YELLOW
BROWN
RED
FM
FAN MOTOR
Refer to error code table.
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