Fujitsu AOYG07KMTA, Service Manual

Page: 78 / 105

Detective Actuators: Detective details:
Forecast of Cause :
Check Point 3 : Check Outdoor Fan
OK
OK
Check Point 5 : Replace Main PCB
OK OK
OK OK
Check Point 1 : Check connections of Outdoor Unit Electrical Components
Outdoor unit Main PCB
Outdoor Fan Motor
Compressor
1. Defective connection of electric components 2. Outdoor Fan Operation failure
3. Outdoor Heat Exchanger clogged 4. Compressor failure 5. Main PCB failure
Check if connector is removed.
Check if
the terminal connection
is loose.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Check Outdoor Fan, Heat Exchanger
Is there anything obstructing the air distribution circuit?
Is there any clogging of Outdoor Heat Exchanger?
Is the Fan rotating by hand when operation is off ?
>> If the Fan Motor is locked, replace it.
Check Outdoor Fan Motor. (Refer to Trouble shooting 21)
>> If the Fan Motor is failure, replace it.
Check Point 4 : Check Compressor
(PARTS INFORMATION 2) Check Compressor.
If Check Point 1 4 do not improve the symptom, change Main PCB.
When more than normal operating current to IPM in Main PCB flows,
the compressor stops.
After the compressor restarts, if the same operation is repeated within 40sec,
the compressor stops again.
If and repeats 5 times, the compressor stops permanently.
02-17
Trouble shooting 14
OUTDOOR UNIT Error Method:
IPM Error
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 6 time Flash, Timer lamp: 5 time Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 65 ]