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4-2. Inverter compressor

¢ Models: AOYG45KRTA and AOYG54KRTA

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

R (U)

S (V) C (W)

Main PCB

• Check the following terminal connections of the Main PCB. (Loosening or incorrect wiring.)

W400 (U): Red

W401 (V): →hite

W402 (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: 1.570 Ω at 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 - (03-51) - 4. Service parts information

TROUBLESHOOTING

Fujitsu ARXG54KHTA User Manual

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