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 Main PCB
Outdoor fan motor
Main Filter PCB
1. Fan Motor failure 2. Motor protection by surrounding temperature rise
3. Main PCB failure 4. Main Filter 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 4 : Check output voltage of Main PCB
If the voltage is not correct, replace Main 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
BLUE
RED
WHITE
YELLOW
CN102
FAN MOTOR
Check outdoor unit circuit diagram and the voltage.
(Measure at Main PCB side connector)
>>1 pin (Red) - 4 pin (Black) : DC280V (AC220V-10%)~ 373V (AC240+10%)
>>4 pin (Black) - 5 pin (White) : DC15V 1.5V
1 2 3 4 5 6 7
1 2 3 4 5 6 7
FM
Check Point 3 : Check Fuse of Main Filter PCB.
Check if F602 is open.
>> If F602 is open, replace Main Filter PCB.
OK
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