¢ Models: AOUH24LUAS1, AOUH30LUAS1, and AOUH36LUAS1
Check point 1. Check the terminal connection.
• Check the following terminal connections of the compressor. (Loosening or incorrect wiring.)
R (U): Red
S (V): →hite
C (W): Black
• Check the following terminal connections of the Main PCB. (Loosening or incorrect wiring.)
P400 (U): Red
P401 (V): →hite
P402 (W): Black
Main PCB
(W)
Compressor
Black
White
Red
(U) (V)
Check point 2. Check the winding resistance.
Check the winding resistance of each terminal.
Resistance value
• 24 model: 1.160 Ω ±8% at 68°F (20°C)
• 30/36 model: 1.120 Ω ±8% at 68°F (20°C)
R(U)
C(W)
S(V)
RED
WHITE
BLACK
If the resistance value is 0 Ω or infinite, replace the compressor.
Check point 3. Replace the Inverter PCB.
If check point 1 to 2 do not improve the symptom, replace the Inverter PCB.
4-2. Inverter compressor - (03-55) - 4. Service parts information
TROUBLESHOOTING
TROUBLESHOOTING
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