How to Test Your Compressor Motor and Its Overload Device on an LG LFX25973 refrigerator.

Scritto Da: Bill Gilbert
  • Commenti: 0
How to Test Your Compressor Motor and Its Overload Device on an LG LFX25973 refrigerator.

Difficoltà

Moderate

Passi

8

Tempo Necessario

30 - 35 minuti

Introduzione

Use this guide to test the compressor motor and its attached overload device for your LG Model LFX25973 refrigerator.

The compressor is the heart of your refrigerator, and if it fails or can't start, your refrigerator is useless. Without the compressor, the refrigerant can't circulate and can't function to cool the interior of the fridge.

Symptoms of such failure include no compressor sound from the fridge and increasing temperature inside the fridge. Sometimes, there may be repeated clicking noises coming from the lower part of the fridge.

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    • Unplug your refrigerator before you begin your repair.

    • If you are testing or repairing the following items, you may also need to shut off and disconnect the water supply:

    • Condenser Fan Motor

    • Compressor Motor and Thermal Overload Device

    • Water Supply Valve Assembly

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    • Use a Phillips screwdriver to remove the six 14.5 mm‑long screws securing the condenser cover to the rear of the refrigerator.

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    • Tilt the top edge of the condenser cover toward you.

    • Lift and remove the condenser cover.

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    • Squeeze and pull down the white compressor connector to disconnect it.

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    • You should wear gloves to protect your hands from the sharp edges in this area

    • Use your multimeter to measure the resistance between the two pins on the connector.

    • Acceptable values are between 6 and 14 ohms

    • This test checks both the compressor winding and thermal overload device.

    • If you get an open reading, it could be either the motor or the thermal overload device. Follow the next steps to continue diagnosing.

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    • Use a Phillips screwdriver to remove the 18.0 mm‑long screw securing the connector cover to the compressor.

    • Slide the connector cover off of the compressor.

    • Don't try to fully remove the connector cover as it is still connected to the compressor.

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    • Use a small flathead screwdriver to pry the power connector off of the compressor.

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    • Use your multimeter to check the resistance between the bottom and top left pins.

    • The correct resistance value is 7.2-9.2Ω for a FLA075LANA or FLB075LANA compressor; other models show 6-8Ω.

Conclusione

To reassemble your device, follow these instructions in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our  Answers community for help.

Autore

Bill Gilbert

Membro da: 30/06/22

29837 Reputazione

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