Fujitsu AB Series A18LATN, Service Instruction

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Trouble shooting 18
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 : Check connection of around the Compressor components
OK OK
OK OK
Indicate or Display:
ERROR CODE : E : 1A
Check Point 3: Replace Main PCB
Outdoor Unit Main PCB Circuit
Compressor
Compressor rotor location cannot detect
(Permanent Stop)
1. Defective connection of electric components 2. Main PCB failure 3. Compressor failure
If Check Point 1,2 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
Check Point 1 : Check Noise from Compressor
Turn on Power and check operation noise.
If an abnormal noise show, replace Compressor.
Outdoor Unit (AB*A18L/ 24L) : LED 0.1sec ON/ 2sec OFF
(AB*A36L/ 45L) : LED 13 times blink