Fujitsu AU G18LVLB Series Service Instruction page 92

SERVICE PARTS INFORMATION 2
Inverter Compressor
Check Point 1 : Check Connection
Check terminal connection of Compressor
(loose or incorrect wiring)
W
(BLACK)
V
(WHITE)
Transistor 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 Main PCB
If the symptom does not change with above Check 1, 2, replace Transistor PCB.
W
(BLACK)
W U
V
or infinite, replace Compressor.
Resistance Value :
V
Transistor PCB
W
TM305
TM304
(U) (V)
RED
Compressor
0.526 at 20°C (72/90)
02-53
V
TM303
(W)
BLACK
U
WHITE