Fujitsu AS*A09LKC Service Instructions Manual page 52

SERVICE PARTS INFORMATION 2
Inverter Compressor
Check Point 1 : Check connection
Check terminal connection of Compressor
(Loose or incorrect wiring)
V
(WHITE)
Inverter PCB
U
(RED)
Check Point 2 : Check winding resistance
Check winding resistance of each terminal
If the resistance value is 0
U
W
Check Point 3 : Replace Inverter PCB
If Check Point 1, 2 do not improve the symptom, replace lnverter PCB.
W
(BLACK)
or infinite, replace Compressor.
Resistance value : 0.71
V
Check connection of Inverter PCB
(Loose or incorrect wiring)
Inverter PCB
W7
RED
Compressor
(at 20°C)
02-30
W8 W9
BLACK
WHITE