Fujitsu AB Series A18LATN, Service Instruction

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Trouble shooting 30
OUTDOOR UNIT Error Method:
Detective Actuators: Detective details:
Forecast of Cause :
Indicate or Display:
Compressor Start-up error
(Permanent Stop)
On start-up the compressor, when detected rotor position is out of phase
with actual rotor position 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.
Outdoor Unit Main PCB Circuit
Compressor
1. Defective connection of electric components 2. Main PCB failure 3. Compressor failure
Check Point 2 : Check connection of around the Compressor components
OK OK
OK OK
Check Point 3 : Replace Main PCB
If Check Point 1,2 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
07-31
Check Point 1 : Check Noise from Compressor
Turn on Power and check operation noise.
If an abnormal noise show, replace Compressor.
ERROR CODE : E : 1A
Outdoor Unit (AB*A18L/ 24L) : LED 0.1sec ON/ 2sec OFF
(AB*A36L/ 45L) : LED 14 times blink