Fujitsu ASU30RLE Service Instruction page 54

Trouble shooting 15
OUTDOOR UNIT Error Method:
Inverter Error
Detective Actuators:
Transistor PCB
Forecast of Cause:
1. External cause. 2. Power supply to Filter PCB to Inverter PCB wiring disconnection, open 3. Filter PCB failure
4. Transistor PCB failure
Test 1-1 : Turn the power on again
Error displayed again?
YES
Test 2 : Check the wiring (Power supply to Filter PCB to Transisor PCB)
Connector and wiring connection state check
Cable open check
OK
Test 3 : Replace Transistor PCB
If Test 1,2 do not improve the symptom, replace Transistor PCB(Outdoor unit),
and execute the check operation again.
OK
Test 4 : Replace Main PCB
If Test 3 do not improve the symptom, replace Main PCB(Outdoor unit),
and execute the check operation again.
OK
Test 5 : Replace Filter PCB
If Test 4 do not improve the symptom, replace Filter PCB(Outdoor unit),
and execute the check operation again.
Indicate of Display:
Indoor Unit :
Operation lamp: 6 times Flash,
Timer lamp
ERROR CODE : [E : 63]
Detective details:
Error information received from Transistor PCB.
Test 1-2 : External cause
Check if temporary voltage drop was not generated.
NO
Check if temporary open was not generated.
Check if ground is connected correctly or there are no related cables near the
power line.
02-18
Outdoor unit :
POWER
ERROR
MODE
: 3 times Flash
2
: Light OFF
PUMP LOW PEAK
DOWN NOISE CUT
(L1) (L2) (L3) (L4) (L5) (L6)
6 3
: Light ON n : n times blinking