Fujitsu Inverter Halcyon ASU12RMLQ, Service Instruction

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Trouble shooting 20
OUTDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause :
Indicate or Display:
Refer to error code table.
Compressor Start-up error
(Permanent Stop)
The detect rotor position operation is repeat up to 50 times.
3min ST operates if the compressor fails on start-up,
it start try again of the detect rotor position operation.
If start try repeats 3 times, the compressor stops permanently.
Outdoor Unit Main PCB Circuit
1. Defective connection of electric components 2. Main PCB failure
Check Point 1 : Check connection of around the Compressor components
OK OK
Check Point 2 : Replace Main PCB
If Check Point 1 do not improve the symptom, replace Main PCB.
Check if connector is removed.
Check erroneous connection.
Check if cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
(Refer to PARTS INFORMATION 2)
For Compressor Terminal, Main PCB
02-27