How to Fix Compressor overheating on LG LRSXS2706V (Side-by-Side)

Compressor overheating

This step-by-step repair guide walks you through fixing compressor overheating on your LG LRSXS2706V (Side-by-Side). With the right tools and parts, most homeowners can complete this repair in 1–2 hours and avoid a costly service call.

Part of our Top 20 Refrigerator Models & Common Repair Issues Guide. Browse all refrigerator repair guides for related models and issues.

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Common Symptoms & Causes

If your LG LRSXS2706V is experiencing compressor overheating, you may notice one or more of the following warning signs.

• The refrigerator feels warm inside despite the thermostat being set correctly
• The compressor at the back bottom of the unit is hot to the touch and cycles off repeatedly
• The freezer compartment fails to reach or maintain 0°F
• The LG refrigerator displays a blinking temperature alert or an “Er FF” error code on the control panel

These issues are most commonly caused by dirty or blocked condenser coils, a failing condenser fan motor, or a worn overload protector that prevents the compressor from running at a safe operating temperature.

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Safety First

• Unplug the refrigerator from the power outlet before starting any repair — never work on a live appliance.
• Shut off the water supply valve before disconnecting any water lines or hoses.
• Wear work gloves when handling metal brackets, sheet metal edges, or sharp components.
• Take photos with your phone before disconnecting any wiring harnesses or connectors.
• Work in a well-lit area with enough floor space to lay removed panels flat.

Tools & Parts Needed

Essential Tools

• Phillips #2 screwdriver
• ¼” nut driver
• Needle-nose pliers
• Multimeter
• Flashlight or work light

Replacement Parts

• Start relay
• overload protector
• condenser cleaning brush
• ¼” nut driver set

Step-by-Step Repair Instructions

Step 1

Unplug the refrigerator and pull it away from the wall before doing anything else, because the compressor area carries live voltage during operation. Remove the four ¼-inch hex screws securing the lower rear access panel to expose the compressor and its components. Never skip this step — working near a running compressor risks electric shock and burns from the overload protector.

Step 2

Pull the start relay straight off the compressor’s side pin terminal and shake it next to your ear — an internal rattle means the relay’s contact has broken down, which starves the compressor of the starting current it needs and causes it to overheat and trip. Before installing a replacement, match the part number printed on the relay to the compressor’s label, because an incorrect relay delivers the wrong current profile. Pro tip: a quick sniff test helps too — a burnt smell from the relay confirms it failed even if there’s no rattle.

Step 3

Clip your multimeter leads onto the overload protector terminals and set it to Rx1 to test for continuity at room temperature — this small device monitors compressor temperature and cuts power when it overheats, so if it has failed open permanently it will never allow the compressor to restart. A reading of open (OL) at room temperature means the overload protector is defective and must be replaced. Safety note: make sure the unit has been unplugged for at least five minutes before touching the protector, as the compressor housing retains heat.

Step 4

Use a vacuum with a soft brush attachment to clean the condenser coils accessible behind the lower front grille or through the rear panel, always moving the brush in the direction of the fins to avoid bending them. Clogged condenser coils are one of the most common causes of compressor overheating because they prevent heat from dissipating out of the refrigerant loop, forcing the compressor to work harder and run hotter. Pro tip: aim to clean condenser coils at least once a year, or every six months if you have pets, since hair and dust accelerate blockage.

Step 5

Check that the refrigerator has at least two inches of clearance on both sides, the top, and the rear wall, because restricted airflow traps the heat the condenser is trying to shed and sends compressor temperatures above safe limits even if all other components are functioning correctly. Rearranging cabinetry or pulling the unit further from the wall is a free fix that is often overlooked. If the unit is built into a tight enclosure, confirm that the manufacturer’s ventilation specifications for this model are actually being met.

Step 6

Plug the unit back in and observe the compressor for up to five minutes — a healthy compressor following a successful repair will start smoothly and hold a steady run cycle without clicking off on the overload protector. If the compressor still short-cycles or fails to start after you have addressed the relay, overload protector, coils, and airflow clearance, the inverter control board is the next component to diagnose, as it governs compressor speed on this model and can cause identical overheating symptoms when it malfunctions. At that stage, board-level diagnosis typically requires a technician with a service manifold and board test equipment.

Where to Buy Replacement Parts

Find genuine OEM and aftermarket replacement parts for your LG LRSXS2706V (Side-by-Side) on Amazon:

• LG LRSXS2706V compressor start relay EAU60905404
• LG refrigerator condenser coil cleaning brush kit
• LG refrigerator overload protector EAU60905310

When to Call a Professional

If the issue persists after completing all steps above, the problem may involve the sealed refrigerant system, a failed main control board, or wiring that requires specialized diagnostic equipment. Contact a licensed appliance technician — attempting sealed-system repairs without EPA 608 certification is illegal and unsafe.

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How Much Does This Repair Cost?

DIY parts such as a condenser fan motor or overload protector typically cost $15–$80, depending on the component needed. A professional service call for compressor overheating on the LG LRSXS2706V generally runs $150–$300, including labor. Tackling this repair yourself can save you $100 or more in service fees.

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Frequently Asked Questions

Why is my LG LRSXS2706V compressor overheating?

The most common causes are dirty condenser coils, a failing condenser fan motor, or poor ventilation around the refrigerator. Cleaning the coils and ensuring at least two inches of clearance on all sides often resolves the issue.

Is it safe to keep using my refrigerator while the compressor is overheating?

Continued use risks permanent compressor damage and potential food spoilage. Address the problem promptly to avoid a costly full compressor replacement.

How do I know if my LG LRSXS2706V compressor needs to be replaced?

If the compressor runs hot, clicks off repeatedly, and the refrigerator never reaches the set temperature after cleaning the coils, the compressor itself may be failing. A certified technician can perform a resistance test to confirm the diagnosis.