Inverter Compressor - Fujitsu ASYG07KGTF Service Manual

5-2. Inverter compressor

Check point 1. Check connection
• Check terminal connection of compressor (loose or incorrect wiring)
• Check terminal connection of main PCB (loose or incorrect wiring)
↓
Check point 2. Check winding resistance
Check winding resistance of each terminal.
Resistance value: 1.975 Ω at 25°C
W(C)
→ If the resistance value is 0 Ω or infinite, replace compressor.
↓
Check point 3. Replace inverter PCB
If check point 1 to 2 do not improve the symptom, replace main PCB.
5-2. Inverter compressor
V(S)
(WHITE)
Main PCB
U(R)
(RED)
Main PCB
W400(U) W401(V)
RED
Compressor
RED
U(R)
WHITE
V(S)
BLACK
- (03-70) -
W(C)
(BLACK)
W402(W)
BLACK
WHITE
5. Service parts information