Fujitsu AS*G09KXCA Series Service Instruction page 78

SERVICE PARTS INFORMATION 2
Inverter Compressor
Check Point 1 : Check connection
Check terminal connection of Compressor
(Loose or incorrect wiring)
R
(WHITE)
Main PCB
S
Check Point 2 : Check winding resistance
Check winding resistance of each terminal
If the resistance value is 0
U(R)
W(C)(T)
Check Point 3 : Replace Inverter PCB
If Check Point 1, 2 do not improve the symptom, replace Main PCB.
C
(BLACK)
(RED)
or infinite, replace Compressor.
V(S)
Check connection of compressor terminals
(Loose or incorrect wiring)
Main PCB
W400
RED
Compressor
Resistance Value :
1.740 at 20°C
02-44
W401 W402
BLACK
WHITE