Fujitsu AB F18LAT Series Service Instruction page 61

Trouble shooting 28
OUTDOOR UNIT Error Method:
Compressor Start-up error
(Permanent Stop)
Detective Actuators:
Outdoor Unit Main PCB Circuit
Compressor
Forecast of Cause :
1. Defective connection of electric components 2. Main PCB failure 3. Compressor failure
Check Point 1 : Check Noise from Compressor
Turn on Power and check operation noise.
If an abnormal noise show, replace Compressor.
OK OK
Check Point 2 : Check connection of around the Compressor components
For Compressor Terminal, Main 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 3 : Replace Main PCB
If Check Point 1,2 do not improve the symptom, replace Main PCB.
Indicate or Display:
Outdoor Unit : LED 0.1sec ON/ 2sec OFF
ERROR CODE : E : 1A
Detective details:
Compressor rotor position operation is retried up to 50 times.
If start-up is not available by
retried after 3 minutes ST.
After 3 start-up trials, the compressor stops permanently.
02-30
, Start-up trial of rotor position operation is