Fujitsu AMUG24LMAS, Service Manual

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Parts information 2
Check Point 1 :
Check connection
Check Point 2 :
Check winding resistance
Check Point 3 :
Replace main PCB
R(U)
S(V)
T(W)
Inverter compressor
AOU24/30RGLX
AOUG36/48LMAS1
Check terminal connection of compressor
(loose or incorrect wiring)
Check winding resistance of each terminal
If the resistance value is 0 or infinite, replace compressor.
If the symptom does not change with above check 1, 2, replace main PCB.
03-50
(Appropriate) Resistance value :
AOU24/30RGLX : 0.642
Ω at 68°F (20°C)
AOUG36/48LMAS1 : 0.432
Ω
at 68
°F (20°
C)
R(U)
(RED)
S(V)
(WHITE)
T(W)
(BLACK)
IPM PCB
(W)
(V)
(U) RED
24/30 models : TM305
36/48 models : TM403
RED WHITE
BLACK
Compressor
Inverter PCB
(U)
(V) WHITE
24/30 models : TM304
36/48 models : TM404
(W) BLACK
24/30 models : TM303
36/48 models : TM405