GE Refrigerator Inverter Compressor Vibrating: How to... | appliancefaults.com

Technical Background:

The refrigerator's Main Control Unit (MCU) sends signals to the inverter board, which then regulates the voltage and frequency supplied to the compressor motor. Incorrect voltage, refrigerant overcharge or mechanical failure can cause the compressor to vibrate excessively. The vibration can amplify if the compressor touches any part of the refrigerator.

Symptoms:

US homeowner reports a loud buzzing or rattling noise coming from the back of their GE refrigerator. The noise seems to originate from the compressor area and is accompanied by noticeable vibration in the back panel.

Possible Causes:

Loose compressor mounting bolts
Weak or broken compressor vibration dampeners
Refrigerant line touching the back panel
Debris lodged between the compressor and back panel
Excessive compressor cycling due to cooling issues

Solution:

1

Unplug the refrigerator from the 120V AC outlet and LOTO the breaker.
2

Carefully pull the refrigerator away from the wall to access the back panel.
3

Inspect the compressor mounting bolts. Tighten any loose bolts with a 1/2-inch socket.
4

Examine the compressor vibration dampeners (rubber feet). Replace any broken or worn dampeners.
5

Check for refrigerant lines touching the back panel. Gently bend the lines away from the panel, ensuring they do not contact anything else.
6

Remove any debris found between the compressor and back panel.
7

Plug the refrigerator back into the 120V AC outlet. Monitor for continued vibration.

Safety Warning:

Disconnect the power supply to the refrigerator before performing any repairs. Always use proper Lock-Out/Tag-Out (LOTO) procedures. The inverter board carries high voltage even after the unit is unplugged. Wait at least 5 minutes to allow capacitors to discharge before working near the inverter.

Prevention:

Clean the condenser coils at least every six months using a vacuum cleaner with a brush attachment. This helps to ensure proper airflow and prevents the compressor from overworking, which can lead to vibration. Also check the back panel for anything touching the compressor.

Expert Tip:

Access the GE refrigerator's service mode by pressing and holding the freezer and refrigerator temperature adjustment buttons simultaneously for 5-10 seconds. Use service mode to run compressor tests and monitor refrigerant pressures.

Frequently Asked Questions

•How do I check the compressor windings for shorts or opens?

Use a multimeter to check the resistance between each of the compressor terminals. Consult the service manual for the correct resistance values. Open or shorted windings indicate a faulty compressor.

•What type of vibration dampeners are compatible with my GE refrigerator model?

Refer to the parts diagram or consult a parts supplier to identify the correct vibration dampeners for your specific GE refrigerator model. Be sure to note the model number when ordering replacement parts.

•What refrigerant pressures should I expect to see during normal operation?

Normal operating pressures vary depending on the refrigerant type and ambient temperature. Consult the refrigerator's service manual or the refrigerant charge sticker for the correct pressure readings. Use a manifold gauge set to measure the high and low side pressures.

GE Refrigerator Inverter Compressor Vibrating: How to Fix

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I check the compressor windings for shorts or opens?

•What type of vibration dampeners are compatible with my GE refrigerator model?

•What refrigerant pressures should I expect to see during normal operation?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: