How to Fix LG Fridge not Cooling but Freezer works

How to Fix LG Fridge not Cooling but Freezer works

All hands will point to the Freezer when a question of which is the most important of all the kitchen appliances is asked. But what will happen when this LG fridge is not cooling anymore? You know quite well of the various stuff you have kept in the fridge that is perishable without the cool of the freezer… you being on this blog today and reading this article tells that you may be passing through one of these issues.

Not to worry, you are in the right place and are reading the right article. It does not matter whether you are a first-timer to this kind of problem. In this article, we will be dealing with all issues relating to your LG fridge not cooling but freezer works. The following are some common reasons why an LG refrigerator is not cooling. 

How to Fix LG Fridge not Cooling but Freezer works
How to Fix LG Fridge not Cooling but Freezer works

Potential Root Causes and Solutions: LG Refrigerator Doesn’t Cool Or Freeze 

Check out what may be the root cause of the LG refrigerator not cooling below:

Inverter Linear Compressor Failed

If your LG refrigerator is not cooling in both compartments, this is a common cooling problem for double door (french door) refrigerators and is 90% of the time caused by a failed inverter linear compressor and 10% by a failed start relay.

If the freezer is still cold but the fridge section is warming up, this is usually due to restricted airflow caused by a burned defrost thermal fuse, defrost heating element, or failed evaporator fan. 

The report of the new generation of linear compressors used in LG refrigerators has not proven to be reliable and is no longer new news. They fail quite often.

If your refrigerator isn’t cooling at all in both the freezer and fridge compartments, you should take it out of its place, remove the back panel, and listen to see if the compressor is running or not.

If you hear the compressor running but there is no cooling, you have a failed compressor.

In other words, it is not pumping refrigerant through the sealed system to cool the refrigerator. 

The good news is that most of these LG compressors come with a 10-year warranty.

Check your warranty first, and then contact LG Customer Service at 1-888-542-2623 for assistance. 

The compressor start relay has failed (If Not Linear Compressor)

The start relay is a critical component of the cooling system in an LG refrigerator. It works in conjunction with the refrigerator’s compressor unit, and if it is not working properly or not working at all, it will prevent the compressor unit from working properly or not working at all. You’ll need to open the back access panels to get to the bottom of the refrigerator. The first step is to remove the refrigerator so that you can unplug it from the outlet and disconnect any attached water lines. Place the refrigerator in a position that allows you to access the back panels.

The start relay will be located near the compressor at the bottom of the unit; using a multimeter, test the relay for continuity between the start and run terminals.

If there is no continuity, the relay must be replaced. Contact LG to inquire about obtaining a new starter relay. Replace the new part, re-button everything, plug in the unit, and reconnect the water line if it was disconnected.

Check to see if the compressor is operational. 

Dirty condenser coils

The condenser coils are the most important component of the refrigerator’s cooling system. The condenser contains the refrigerant and circulates the coolant inside the coils.

The heat is removed from the refrigerator by the air that flows across the condenser coils.

So, if the temperature inside the refrigerator does not stay at the temperature you set, it is possible that something is wrong with the condenser unit or that the coils are dirty. 

The condenser unit is located at the bottom of the refrigerator and must be accessed from the back.

If you need to move the unit a long distance, unplug it from the wall and disconnect the water line.

After inspecting the condenser unit and determining that the coils are indeed dirty, simply remove any debris with a stiff brush, compressed air, and, for really caked-on dirt, soapy water along with the brush.

If you use water, make sure everything dries before testing. 

The condenser fan motor is not working.

The circulation of cool air is essential to the LG refrigerator cooling system. The condenser fan, which moves air across the condenser coils to cool the air, is a big part of that.

If you suspect that airflow is reduced or non-existent, the fan blades may be obstructed or the fan motor may be faulty.

Before working on anything that requires power, always ensure that the power is turned off.

First, ensure that the fan is turning freely and is free of debris.

If everything appears to be in order, use a multimeter to check the motor for continuity. After obtaining the new part for the repairs, remove the old fan motor and replace it with the new fan motor.

After you’ve completed the repairs, replace all covers, reconnect the water line if necessary, plug in the power cord, and reinstall the refrigerator.

Allow the unit to cool before checking to see if it has reached the proper temperature. 

The evaporator fan motor is not working.

The evaporator fan circulates air across the cooling coils and into the freezer and refrigerator sections of the refrigerator.

Most refrigerators have only one evaporator system, which is located behind the freezer section.

If the air does not circulate properly, neither section will be kept cool enough.

Always inspect the fan to ensure that it is spinning freely and is not clogged with debris. If the fan will not turn, you most likely have a faulty evaporator fan motor.

Using a multimeter, test the motor for bad internal windings and continuity.

If the windings are the source of the problem, you should contact LG and order a new evaporator fan motor. If you need to replace the fan motor, make sure you unplug the power cord and, if necessary, disconnect the water line.

Gain access to the refrigerator’s back to access the evaporator motor.

Detach the motor’s power leads and remove the mounting bolts that hold the motor in place. Remove the old motor and replace it, then re-button everything and plug the unit in. 

The thermostat for temperature control is not working.

The thermostat is an important part of the LG refrigerator’s electrical system because it controls the flow of power to the cooling system’s motors (evaporator fan, condenser fan, and compressor).

One or more parts of the cooling system will not function if it is not working properly.

If you suspect the temperature control thermostat is the source of the problem, you must gain access to the back of the unit. The thermostat will be easily accessible at the bottom of the unit. Turning the knob and hearing a click indicates that the thermostat is likely operational. 

However, you should test it for continuity as you turn the knob to be sure.

If the thermostat fails, contact LG and request a replacement part for your model refrigerator.

Once you’ve installed the replacement part and reconnected the water line (if you disconnected it), plug the unit back in and test it out. 

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