Inverter Compressor - Fujitsu AMUG30LMAS Service Manual

4-2. Inverter compressor

Check point 1. Check the terminal connection.
• Check the following terminal connections of the compressor. (Loosening or incorrect wiring.)
• Check terminal connection of inverter PCB (loose or incorrect wiring)
↓
Check point 2. Check the winding resistance.
Check the winding resistance of each terminal.
Resistance value
• 30 model: 0.676 Ω ± 8 % at 68 °F (20 °C)
• 36/48 model: 0.240 Ω at 68 °F (20 °C)
T(W)
→ If the resistance value is 0 Ω or infinite, replace the compressor.
↓
4-2. Inverter compressor
S(V)
(WHITE)
Main PCB
R(U)
(RED)
Inverter PCB
P400(U) P401(V)
RED
Compressor
RED
R(U)
WHITE
S(V)
BLACK
- (03-51) -
T(W)
(BLACK)
P402(W)
BLACK
WHITE
4. Service parts information