LG Refrigerator LFXS26973S: Linear Compressor Humming Troubleshooting

LG LFXS26973S fridge compressor humming, but fans work? Diagnose and fix the issue. Get your LG refrigerator cooling properly again!

Frequently Asked Questions

What are the typical resistance values I should see when testing the compressor windings?

Typically, you should see very low resistance (a few ohms) between each of the three compressor terminals. Open or shorted readings indicate a faulty compressor.

How do I properly discharge the capacitor on the MCU before working on it?

Use a 20,000-ohm, 2-watt resistor to carefully discharge the capacitor. Connect the resistor leads to the capacitor terminals for several seconds. Verify with a multimeter that the voltage has dropped to zero.

If the compressor is replaced, what type of refrigerant does the LFXS26973S use and what is the charge amount?

The LFXS26973S uses R600a refrigerant. The refrigerant charge amount is typically listed on the refrigerator's data plate, located inside the refrigerator compartment. Refer to the data plate for the precise charge amount in ounces.

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