Fujitsu ARU7RLF Service Instruction page 75

SERVICE PARTS INFORMATION 2
Inverter Compressor
Check Point 1 : Check Connection
Check terminal connection of Compressor
(loose or incorrect wiring)
V(S)
(WHITE)
Main PCB
U(R)
(RED)
Check Point 2 : Check Winding Resistance
Check winding resistance of each terminal
If the resistance value is 0
U(R)
W (T)
Check Point 3 : Replace Main PCB
If the symptom does not change with above Check 1, 2, replace Main PCB.
W (T)
(BLACK)
or infinite, replace Compressor.
V(S)
For AOU18 / 24RLXFZ
For AOU36RLXFZ
Check terminal connection of Main PCB
(loose or incorrect wiring)
Main PCB
TM305
RED
Resistance Value : 0.97
Resistance Value : 0.88
02-40
TM304 TM303
BLACK
WHITE
Compressor
at 68°F(20°C)
at 68°F(20°C)