Fujitsu AO*24LMAKL, Service Instruction

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Trouble shooting 17
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 1 : Check connection of around the Compressor components
OK OK
Indicate or Display:
Indicate or Display:
Indoor Unit : No LED
Outdoor Unit : LED 13 times blink/ 12 times blink(AU*24LMAKL)
ERROR CODE : E : 1A
Check Point 2 : Replace Main PCB
Outdoor Unit Main PCB Circuit
Compressor rotor location cannot detect
(Permanent Stop)
1. Defective connection of electric components 2. Main PCB failure
If Check Point 1 do not improve the symptom, change 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
While running the compressor, if the detected rotor location is out of
phase with actual rotor location more than 90 degrees,
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.
07-20