Fujitsu AO G30KBTB Series Service Instruction page 69

Trouble shooting 30
OUTDOOR UNIT Error Method:
Outdoor Unit Fan Motor Error
Detective Actuators:
Outdoor unit Inverter PCB
Outdoor unit Main PCB
Outdoor unit fan motor
Forecast of Cause:
1. Fan rotation failure
4. Main 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.
OK
Check Point 2 : Check ambient temp. around motor
Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)
>>Upon the temperature coming down, restart operation.
OK
Check Point 3 : Check Outdoor unit fan motor
Check Outdoor unit fan motor. (PARTS INFORMATION 5)
>>If Outdoor Fan Motor is abnormal, replace Outdoor fan motor and Main PCB.
OK
Check Point 4 : Check Output Voltage of Inverter PCB
Check outdoor unit circuit diagram and the voltage. (Measure at Inverter PCB side connector)
RED
1 1
2 2
3 3
BLACK
P650 4 4
WHITE
5 5
YELLOW
6 6
BROWN
7 7
If the voltage is not correct, replace Inverter PCB.
OK
Check Point 5 : Replace Main PCB
If Check Point 1~4 do not improve the symptom, change Main PCB.
Indicate or Display:
Error code : 97
Detective details:
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
permanently.
2. Motor protection by surrounding temperature rise
5. Outdoor unit fan motor failure
Read wire
Fan motor
Red - Black
FM
White - Black
Outdoor unit :
Mode Error L1 L2
2
: Light OFF
repeats 5 times in a row, compressor and fan motor stops
DC voltage
280V (AC220V-10%)
~ 373V (AC240+10%)
15 1.5V
02-32
L3 L4 L5 L6
9 7
: Light ON n : n times blinking
3. Inverter PCB failure
DC