Fujitsu ASU30RLE Service Instruction page 68

Trouble shooting 29
OUTDOOR UNIT Error Method:
Outdoor Unit Fan Motor 2 Error
Detective Actuators:
Outdoor unit main PCB
Outdoor unit fan motor
Forecast of Cause:
1. Fan rotation 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.
OK
Test 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
Test 3 : Check Outdoor unit fan motor
Check Outdoor unit fan motor. (SERVICE PARTS INFORMATION 5)
>>If Outdoor Fan Motor is abnormal, replace Outdoor fan motor and Main PCB.
OK
Test 4 : Check Output Voltage of Main PCB
Check outdoor unit circuit diagram and the voltage. (Measure at Main PCB side connector)
RED
1 1
2 2
BLACK
3 3
WHITE
CN802 4 4
YELLOW
5 5
BROWN
6 6
If the voltage is not correct, replace Main PCB.
Indicate of Display:
Indoor Unit :
Operation lamp: 9 times Flash,
Timer lamp
ERROR CODE : [E : 98]
Detective details:
When outdoor fan rotation speed is less than 100rpm in 20 seconds
①
after fan motor starts, fan motor stops.
After fan motor restarts, if the same operation within 60sec is repeated
②
3 times in a row, compressor and fan motor stops.
If and
③ ①
permanently.
2. Motor protection by surrounding temperature rise
Fan motor 2
Read wire
(Lower)
Red - Black
FM
White - Black
Outdoor unit :
POWER
: 8 times Flash
repeats 5 times in a row, compressor and fan motor stops
②
DC voltage
260 - 400V
15 1.5V
02-32
PUMP LOW
DOWN NOISE
ERROR
(L1) (L2) (L3) (L4)
MODE
9 8
2
: Light OFF : Light ON n : n times blinking
3. Main PCB failure
PEAK
CUT
(L5) (L6)