Fujitsu ASU18RLF Service Instructions Manual page 74

Trouble shooting 29
OUTDOOR UNIT Error Method:
Compresor Control Error
Detective Actuators:
Outdoor unit main PCB
Compressor
Forecast of Cause:
1. Defective connection of electric components
Test 1 : Check connection of around the Compressor components
For Compressor Terminal, Main PCB
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
(SERVICE PARTS INFORMATION 2)
>>Upon correcting the removed connector or miss-wiring, reset the power.
OK
Test 2 : Replace Main PCB
If Test 1 do not improve the symptom, change Main PCB.
(SERVICE PARTS INFORMATION 10)
OK
Test 3 : Replace Compressor
If Test 2 do not improve the symptom, change Compressor.
Indicate of Display:
Indoor Unit
Operation lamp : 9 time Flash
Timer lamp : 5 time Flash
ERROR CODE : [E : 95]
Detective details:
While running the compressor, if the detected rotor location is out of phase
with actual rotor location more than 105°, the compressor stops.
After the compressor restarts, if the same operation is repeated
within 40 sec, the compressor stops again.
If and repeats 5 times, the compressor stops permanently.
2. Main PCB failure
02-34
Outdoor Unit
Monitor
A B C D E
9 5
: Light ON : Light OFF n : n time blinking
3. Compressor failure
F