Is your LG Refrigerator not cooling as it should or it doesn’t seem cold enough after the long hours it has been powered on? Well, many factors may be responsible for this which we will be unveiling in this article. Simply get a note to jot down points that will help you fix the problem of LG Refrigerator not cooling issues.
The Refrigerator is one of the largest and most essential kitchen appliances every home should have. Perishable foods are stored in it to preserve them from getting spoilt and causing wastage. Leftovers, beverages, water, and drinks are stored in it for the family. Unfortunately, just like every other gadget in the home, it could also develop a fault and you discover that the temperature won’t just stay where it’s supposed to be.
There are several causes of LG Refrigerator running but not cooling, some of it is that your Refrigerator was just installed 24 hours ago, hot food was added to the compartment, an error code is being replaced on your refrigerator, or the refrigerator doors are being opened too frequently. Well, you need to find out the exact cause of your problem so you can find a lasting solution to it. Read on to fix LG refrigerator not cooling issues.
In this post, you will get to know the reason why your LF Refrigerator is not cooling, LG Refrigerator error codes and their meanings, how to fix LG refrigerators not cooling, and so on. 
Causes of LG Refrigerator running but not cooling
Several factors could cause your LG Refrigerator to run and not get cold. Some of the causes have been listed below:
The Refrigerator Compressor might be Broken
In other words, the compressor is no longer pumping refrigerant to cool down the fridge. Fortunately, most LG compressors have a 10-year warranty.
Dirty Condenser Coils
The condenser coils may collect dirt, dust, and hair over time which obstructs the coils’ ability to dissipate the heat from the refrigerant passing through the coils. To fix this issue, check the condenser coils to see if they are dirty, in case they are, ensure you clean them thoroughly.
There’s a problem with the Evaporator Coils
The evaporator coils can be covered with ice over time, which prevents the coils from working properly. Once the coils are covered in ice, the ice will need to be defrosted to fix the issue.
The Condenser Fan Motor is Faulty
The condenser fan motor helps in drawing air via the condenser coils and over the compressor. Once the condenser fan motor is not working properly, then the refrigerator won’t cool properly.
LG Refrigerator Error Codes
Error codes are emergency signals that tell you your unit needs your immediate attention. The error codes are displayed as letters and are found on digital control panels. However, depending on the model of LG Refrigerator you have, you will see the common error appear with either, “ER”, “r” or “E”. Other common error codes and their meaning are stated below:
- OFF: This feature (DEMO or DISPLAY MODE) disables all cooling activities in the refrigerator and freezer to save energy while on display in a retail store.
- 15: IS or 15 shows that there’s a problem with the ice maker fan motor or disconnection with the ice maker sensor.
- 22: This error code indicates there’s an issue with the compressor relay.
- 67: This indicates that there’s an issue with a gap in the refrigerator door or there’s an object in the fridge preventing the door from closing properly
- CF: This indicates that the feedback signal is less than 65 seconds during the fan’s operation (That is the fan located behind the refrigerator that discharges heat from the condenser).
- C0: This means that there’s a communication error between the control board and the display.
- dH: This indicates that the unit has spent more than one hour trying to defrost. During the defrost process, the unit will increase the temperature at the evaporator to a preset temperature, once the temperature is not reached within one hour, then the dH error code will be displayed
- d5: This indicates a disconnection in the defrosting sensor. This error code also means the same as F dS and r dS depending on the model of your unit.
- FF: This indicates that the unit has detected a problem relating to the freezer fan which is sometimes caused by frost buildup.
- F5: This indicates a disconnection of the freezer sensor. Could also be displayed as FS.
- 9F: The gF error code indicates a flow sensor error or low water pressure.
- H5: This indicates a disconnection of humidity. Could also be displayed as HS.
- 1F: This shows that the refrigerator has detected an issue with the ice maker’s fan. This often occurs when frost buildup around the ice maker fan. Also displays as F1.
- 1t: This indicates a defect in the ice maker. Could also be displayed as iT.
- rF: This indicates an abnormality in the refrigerator’s fan motor caused by frost buildup.
- r5: This indicates a disconnection of the refrigerator sensor. Could also be displayed as rS.
- rt: This indicates a shortened or open room temperature sensor.
- 55: This indicates a shortened or open pantry sensor. This could also b displayed as SS.
- Ad: An Ad error code indicates the door motor does not move to a maximum position or home position within 5 seconds.
- dL: This also indicates the door motor does not move to a maximum position or home position within 5 seconds
- A5: This indicates the auto door motor is in operation and the reed switch is in the open state. This code could also be displayed as AS, L AS, or r AS depending on your unit model.
- dr: This indicates the door motor does not move to a maximum position or home position within 5 seconds.
- 5b: 5b or Sb means Sabbath mode. The code also looks like S6 and 56. You can turn off Sabbath mode manually by long-pressing on the Freezer and WiFi buttons for about 3 seconds.
- 0d: This indicates a WiFi modem or communication error between the micom of the LCD display and the WiFi modem.
How to fix LG Refrigerator not Cooling
The Refrigerator is one of the most essential appliances every home should have regardless of your status. However, even after getting one you may encounter some issues with it like LG Refrigerator not cooling and you are wondering how you are going to fix it. Well, follow the steps below to achieve that:
Replace the old condenser fan motor in your fridge
To replace the old condenser fan motor in your refrigerator, follow the steps below:
- Detach the old part.
- Install the new one.
- Close up all covers and connect the water line again if needed.
- Connect the power cord.
- Move the refrigerator back to its initial position.
- Power on the refrigerator and let it begin cooling.
- Check the temperature.
This should fix your LG refrigerator not cooling problem.
Ensure the Evaporator Fan Motor is Working
If your refrigerator’s evaporator fan motor is not moving enough cool air, the fridge will not keep the freezer or fridge sections cool. Follow the steps below to check the evaporator fan motor:
- Switch off the refrigerator and find the evaporator fan motor in the freezer compartment.
- Once the fan is too noisy, then this is a sign that it needs a replacement.
- However, if it’s not noisy, then turn the fan blade manually. If the blade is stiff and won’t move, you need to replace the evaporator fan motor.
Also, check the fan motor for continuity, If it fails then you need to replace the motor. Here’s how to test the motor for continuity:
- Turn the blade manually around and see if it turns.
- Connect the motor to the multimeter and check that it has continuity.
- If it has continuity, then your motor is working properly and this is not the cause of the problem.
- However, if the motor doesn’t have continuity, then you need a replacement.
This should fix your LG refrigerator not cooling problem.
Adjust the Temperature Controls
To adjust the temperature controls to your desired setting, follow the steps below:
- Pull the refrigerator away from the wall and disconnect it from the power outlet.
- Check the owner’s manual for any “off” or “zero” settings in your fridge and freezer sections and set them to off or zero.
- Now, connect the refrigerator back and adjust the temperature controls of both the fridge and the freezer to your desired setting.
- Wait for about 24 hours to allow your fridge cool to your set temperature.
This should fix your LG refrigerator not cooling problem.
Replace the Main Control Board
If your LG refrigerator is not showing any error codes but at the same time is not cooling, it means the main control board can no longer detect problems using internal sensors. This is a common issue with LG Linear Compressors. It seems like it’s running but not producing any cold.
If your LG refrigerator is not cooling properly, then you might need to replace the main control board. Although this is not common, it does happen. In case you have tried all other options, replacing the main control board might be your best choice. Or better still, purchase a new fridge. This should fix your LG refrigerator not cooling problem.
LG Fridge not Cooling Reset
LG Refrigerator not cooling can be fixed by also resetting the unit. To reset it follow the steps below:
- Unplug the refrigerator undisturbed for about 45 to 50 minutes.
- Ensure the refrigerator doors are tightly closed even while unplugged.
- Power on your LG refrigerator and check if the reset fixed the issue.
To reset the LG refrigerator, you need to press the power OFF button for 2 minutes. This process will help reset the main control board or motherboard.
LG refrigerator control board comes with a TEST button located behind the fridge.
LG Fridge not Cooling after Power Outage
One of the reasons why your LG refrigerator stopped cooling after a power outage is because of the main control board failure caused by voltage spikes. You can try resetting power by using the flipping breaker, but if this doesn’t fix the cooling problem, then the control board is malfunctioning and you may need to call for repair.
In case power has just been restored and the refrigerator is running, the fridge may need time to start cooling again. Wait for at least 15 minutes to allow the refrigerator to begin cooling again once power has been restored.
An increase or high voltage from a power surge can cause an influx of electrical current within the LG refrigerator. This surge further generates an excessive amount of heat, which can damage multiple parts of the refrigerator that are very essential.
How do I Reset my LG Fridge after Power Outage?
Here’s how you can reset your LG fridge after a power outage.
- Unplug the Fridge or trip the circuit breaker for about 30 seconds to reset the refrigerator.
- You will hear the compressor kick back on and the unit will stabilize and begin cooling within 24 hours.
How long does it take for Fridge to Cool after Power Outage?
In case you just got a new refrigerator and you are plugging it in for the first time, or you moving to a new place, or power has just been restored after an outage, you might be wondering: How long does it take for a refrigerator to cool? Well, on average, the full-size refrigerators need about 12 hours to cool to the FDA-recommended food-safe temperature of 40°F.
LG fridge not cooling no error code
To fix the LG refrigerator not cooling no error code, follow the steps below:
- Try unplugging the refrigerator or trip the circuit breaker for about 30 seconds to reset the refrigerator.
- The compressor will kick back on and the unit will stabilize and begin cooling again within 24 hours.
- If it doesn’t cool, then there is a power supply issue and the unit will require repair service.
I am sure you have been able to fix the LG refrigerator not cooling problem at your end. Feel free to drop your comments in the section below.