Fujitsu AB F18LAT Series Service Instruction page 68

SERVICE PARTS INFORMATION 2
Inverter Compressor
Check Point 1 : Check Connection
Check terminal connection of Compressor
(loose or incorrect wiring)
Terminal cover opened
C(T)
(BLACK) (BLACK)
Check Point 2 : Check Winding Resistance
Check winding resistance of each terminal
If the resistance value is 0
R
C(T)
Check Point 3 : Replace Main PCB
If the symptom does not change with above Check 1, 2, replace Main PCB.
R
(RED) (RED)
S
(WHITE) (WHITE)
or infinite, replace Compressor.
Resistance Value :
S
Check connection of Main PCB
(Loose or incorrect wiring)
MAIN PCB
WHITE
0.73 (For AOY*18LALL)
0.97 (For AOY*24LALL)
at 20°C
02-37
W8
W7 W9
RED
Compressor
BLACK