Fujitsu ASYA07LBCM Service Manual page 41

Trouble shooting 16
OUTDOOR UNIT Error Method:
Compressor Start-up error
(Permanent Stop)
Detective Actuators:
Outdoor Unit Inverter PCB Circuit
Forecast of Cause :
1. Defective connection of electric components
Check Point 1 : Check connection of around the Compressor components
For Compressor Terminal, Inverter PCB
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
(Refer to PARTS INFORMATION 2)
>>Upon correcting the removed connector or mis-wiring, reset the power.
OK OK
Check Point 2 : Replace Inverter PCB
If Check Point 1 do not improve the symptom, replace Inverter PCB.
Indicate or Display:
Refer to error code table.
Detective details:
On start-up of the compressor location detection, start-up duty is raised
by every 0.2 % up to maimum 20 %.
Location detection is repeated up to 50 times. If the 50th start-up try fails,
3 minutes ST is done and above location detection start-up starts again.
If and repeats 3 times, the compressor stops permanently.
2. Inverter PCB failure
02-19