To determine if your LG refrigerator compressor is bad, listen for a clicking, buzzing, or constant running noise, and check for poor cooling in both compartments. A compressor can be definitively diagnosed as faulty by testing its electrical windings with a multimeter or by checking for proper frost patterns on the evaporator coils.
LG refrigerator compressors theoretically last 10 to 15 years and are backed by a 10-year manufacturer warranty. However, LG's linear compressors have a known history of premature failure, with many requiring replacement within 3 to 7 years.
Replacing an LG refrigerator compressor is usually worth it if your fridge is under 5 years old (due to sealed system warranties) or if LG covers the part and labor. If your fridge is older or you have to pay the full repair cost out of pocket ( $650−$1,300 ), it is typically better to buy a new unit.
To reset an LG refrigerator compressor, perform a hard power reset: unplug the unit or flip the circuit breaker off for 5 to 10 minutes. This drains the system's memory and clears error codes. When power is restored, listen closely; the compressor should kick back on within a few minutes.
Replacing an LG refrigerator compressor typically costs between $600 and $1,100 total. This breaks down to $200 to $450 for the replacement part and $400 to $650 for labor (which includes refrigerant recovery, system flushing, and recharging).
The average lifespan of an LG refrigerator is generally 10 to 15 years. While some models, particularly those with advanced technology and proper maintenance, can last up to 20 years, many users and technicians often report issues with components like the ice maker or compressor starting around the 5 to 10-year mark.
The most common problem with LG refrigerators is linear compressor failure. This issue—which often surfaces between years 3 and 5—causes a complete loss of cooling in both the fridge and freezer. While running, the compressor struggles to circulate refrigerant and may emit loud clicking or grinding sounds.
Wait it out: Leave the refrigerator unplugged for 5–10 minutes to allow the compressor to fully reset. Listen for the click: When power is restored, you should hear the compressor kick back on within a few minutes.
To hard reset your LG refrigerator, perform a power cycle: unplug the fridge or flip the dedicated circuit breaker off. Wait a full 5 minutes to let the control board drain its residual power completely, then plug it back in. This clears minor errors and logic locks.
Age of the refrigerator: On average, refrigerators have a lifespan of 10-15 years. If your LG refrigerator is close to this age, it might be more cost-effective to replace rather than repair it.
The compressor, coils and control board are the most expensive repairs. Your fridge's brand, model and size, plus your location, will impact repair costs. If your refrigerator is more than 6 years old and it will cost you more than half its original price to repair it, consider replacing it instead.
LG Electronics has faced multiple class-action lawsuits alleging that specific refrigerators equipped with "linear compressors" suffer from a defect causing them to stop cooling abruptly, leading to food spoilage and expensive repairs.
The most common cause of refrigerator compressor failure is overheating. Overheating places extreme thermal stress on the motor and internal moving parts, ultimately leading to mechanical seizure or motor burnout.
Bottom-freezer refrigerators should be repaired within seven years and considered for replacement after that. Top-freezer refrigerators should be repaired within three years, considered for repair within three to six years, and replaced if older than seven years.
Replacing and even repairing a refrigerator compressor should ALWAYS be performed by a qualified technician. Not only are you dealing with just simple electrical wiring, but potentially dangerous refrigerant as well, which needs to be handled with the proper equipment.
Reset Power
The reset button is almost always located on the electric motor itself—usually on the side or back near the terminal box. It typically sticks out as a small rubber-covered or exposed black/red button, sometimes labeled "Circuit Breaker".
When a refrigerator compressor fails, it stops circulating the refrigerant required to absorb and remove heat. Consequently, the appliance loses its ability to cool. The internal temperature will rise, causing food to spoil rapidly, and you will likely hear strange clicking or humming noises from the back of the unit.
LG has upgraded its linear compressor design, but consumer reports and repair technicians continue to show higher-than-average failure rates for LG refrigerators. While LG offers a 10-Year Linear Compressor Warranty, the units remain notorious for premature breakdowns and requiring expensive out-of-warranty labor.
Diagnose your LG refrigerator by using the LG ThinQ App for a smart scan, checking the LED codes on the main motherboard, or entering Forced Diagnostic Mode via the control panel. These tests help pinpoint issues with cooling, fans, and the defrost system.
Samsung and LG are the refrigerator brands with the highest volume of consumer complaints. Repair technicians and major consumer databases frequently flag these models due to specific, recurring design flaws.
This depends on the cost of repairing the refrigerator and its value. If your refrigerator is more than 10 years old, it might be better to replace the appliance. While repairs might be cheaper, there's no guarantee that an old refrigerator won't wear out within a few months.
Sub-Zero is widely regarded as the brand that lasts the longest, often performing reliably for 20 to 25 years. However, as a high-end built-in brand, it comes with a premium price tag (typically $10,000−$15,000+).
The LG 29 Cu. Ft. Standard-Depth MAX 4-Door French Door Refrigerator (Model LF29H8330) is widely considered the best overall option. It stands out for its massive storage, quiet operation, and a versatile middle drawer that converts between fridge and freezer temperatures.