Test 3 : Check Outdoor unit fan motor
OK
1. Fan rotation failure
2. Motor protection by surrounding temperature rise
3. Main PCB failure
4. Outdoor unit fan motor failure
Test 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.
Test 4 : Check Output Voltage of Main PCB
Check outdoor unit circuit diagram and the voltage. (Measure at Main PCB side connector)
If the voltage is not correct, replace Main PCB.
(SERVICE PARTS INFORMATION 10)
Read wire
DC voltage
CN243
1
2
3
4
5
6
7
1
2
3
4
5
6
7
BLACK
FM
FAN MOTOR
Test 2 : Check ambient temp. around motor
OK
Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)
>>Upon the temperature coming down, restart operation.
RED
BROWN
YELLOW
WHITE
15 1.5V
White - Black
260 - 400V
Red - Black
Check Outdoor unit fan motor. (PARTS INFORMATION 6)
>>If Outdoor Fan Motor is abnormal, replace Outdoor fan motor and Main PCB.
OK
Trouble shooting 35
OUTDOOR UNIT Error Method:
Outdoor Unit Fan Motor Error
Outdoor unit main PCB circuit
Outdoor unit fan motor
When outdoor unit fan rotation speed is less than 100 rpm in 20 seconds
after fan motor starts, fan motor stops.
After fan motor restarts, if the same operation within 60 sec 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.
Detective Actuators:
Detective details:
Indicate of Display:
Forecast of Cause:
02-50
Indoor Unit
Outdoor Unit
Operation lamp : 9 time Flash
ERROR CODE : [E : 97]
Timer lamp
: 7 time Flash
Monitor
A
B
C
D
E
F
9
: Light ON
: Light OFF
n : n time blinking
7
