LG is a household name in the refrigerator market. Homeowners have benefited greatly from having an LG fridge in their kitchens, but that doesn’t mean they’re indestructible. There may come a time when a random jumble of letters and/or numbers appears on the digital display, and you’ll be in trouble.
Or, you would be in trouble if you can’t decipher what those error codes mean! In this guide, I’ll explain what the different LG refrigerator error codes mean, as well as what you can do to troubleshoot the problem.
LG Refrigerator Error Code List
Here, I’ll list all of the LG fridge error codes. If your fridge is on the fritz, look at the error code on the display and search for that code down below.
OFF or OF F—Demo mode
All LG fridges come with a Demo or Display Mode, which is what stores use to showcase the product. When this mode is active, the fridge will turn on like normal, but it will not chill its contents. This is a measure to help stores show what the fridge looks like without consuming too much energy.
Solution: Deactivate demo mode
Open the fridge door or one of the doors while pressing and holding the Refrigerator and Ice Plus buttons simultaneously. When you hear a beeping sound after roughly 4 seconds, you have successfully deactivated demo mode. Now, you can alter the temperature of your fridge to whatever setting you want.
ER 15 or ER IS—Disconnected ice maker fan or sensor
Many modern LG refrigerators come with an ice maker that automatically makes ice cubes and dispenses them into the ice tray below. The ice maker is a delicate component, and its fan or sensor can become disconnected when you move the fridge too much.
Solution: Check all wire harness connections
First, unplug the fridge and open the owner’s manual and look at the ice maker diagram. There, you’ll read how to take the ice maker apart. You can also watch PartSelect’s video on how to remove the ice maker. When checking the ice maker, look at the wire harnesses and make sure they are secured in place. Plug the fridge back in and check to see whether the error code is gone.
ER 22—Faulty compressor relay
The compressor relay instructs the fridge when to turn the compressor on and off. This is usually determined by the internal temperature of the fridge, so when it gets too hot, the compressor will turn on. If the ER 22 code shows up, that means the relay isn’t doing its job, and your fridge will continue to cool down or heat up.
Solution: Check the compressor relay
The best you can hope for is a loose connection in the compressor relay, but you’ll still have to open the fridge. If the compressor relay is broken, you need to install a replacement. To do this, you’re going to have to remove at least the back panel of your fridge. Follow the instructions in ApplancePartPros’ video to see how to do this.
ER 67—Door cannot close
Your fridge door needs to close completely in order to maintain a low temperature. If the door doesn’t close all the way, it can cause excessive strain on the compressor and compressor relay. The E67 error code indicates that the fridge door isn’t shut completely. If the error code persists after carefully shutting the door or removing large objects that are potentially preventing the door from closing all the way, try the following solutions.
Solution #1: Check the gasket for damage
The gasket keeps the door airtight when shut. If there are cracks in the gasket due to dryness, you’ll need to replace it completely. RepairClinic.com has an excellent video that demonstrates how to install a replacement gasket.
Solution #2: Realign the door
Slamming the door too frequently can cause the door to become misaligned. You’ll need to remove the door to check its hinges for damage. ApplianceVideo.com’s video will show you how to realign your fridge door to make it shut tightly.
ER CF—Faulty condenser fan
The condenser fan keeps the compressor and condenser coils at the optimal temperature. You may notice an ER CF error code appear on the LG fridge’s display, indicating that the condenser fan is faulty, resulting in a warmer-than-normal fridge.
Solution: Check the condenser fan and motor
The condenser fan may be blocked, or the motor may be nearing the end of its lifecycle. In either case, you will have to access the condenser fan and motor by removing the back panel. Follow this video guide by RepairClinic.com to see how it’s done.
Er CO—Faulty display
Ironically enough, your LG fridge’s display will let you know when it’s on the fritz by showing the ER CO error code. There are several reasons why this would appear, including loose connections, moisture buildup, or damaged parts.
Solution: Check the display and control board for damage
Open the fridge and inspect the control board. It will look like a circuit board with all sorts of wire connections. If you don’t feel confident enough to follow the video guide by RepairClinic.com, I highly suggest hiring a professional technician to inspect your fridge for you.
ER DH—Cannot defrost properly
Modern LD refrigerators come with a preprogrammed defrosting setting. You should run this every 6 to 12 months to remove chunks of ice in the ice maker or freezer fan. When the ER DH code appears, however, your fridge will not run a defrost cycle, possibly due to false temperature readings or huge ice chunks.
Solution #1: Reset the refrigerator
The simplest solution to this problem is to reset the fridge. Simply unplug it from the wall outlet, let it rest for 1 to 2 minutes, then plug the fridge back in. Allow it to reboot completely before attempting to run another defrost cycle.
Solution #2: Manually defrost the fridge
If that didn’t work, then you should try manually defrosting the fridge. Remove all the food from your freezer and chiller, then unplug the refrigerator and leave it off for 24 hours, making sure to place a bucket underneath the ice bucket to capture the melted ice chunks. After 24 hours, plug the fridge back in, let it reboot, and see whether that cleared the ER DH error.
ER dS—Faulty defrost sensor
The defrost sensor is in charge of telling the fridge to raise the temperature when running a defrost cycle and then shut off the heating process when the fridge has defrosted completely. A faulty defrost sensor, noted by the ER dS error code, means the sensor will not trigger the fridge to lower or raise its temperature, possibly leading to a blown fuse.
Solution: Check the defrost sensor
You’ll need to remove the freezer and fridge trays and brackets in order to access the defrost sensor. Follow this video guide by ApplianceVideo.com to see how it’s done. In extreme cases, the sensor may be broken, and your only option is to replace it entirely.
ER FF—Faulty ice maker fan
Your refrigerator’s freezer fan may stop functioning if frost accumulates on its blades. Excessive frost is typically brought on by problems with the freezer door preventing it from being completely closed.
Solution #1: Check the gasket for frost buildup
Use a moistened paper towel and wipe down the gasket. If there are chunks of ice stuck to the gasket, use your fingernail or a toothpick to pry them off. Do not use a sharp object, which can rip the gasket and cause an ER 67 error code.
Solution #2: Check the gasket for damage
Refer to Solution #1 in the ER 67 error code section.
Solution #3: Realign the door
Refer to Solution #2 in the ER 67 error code section.
ER F5—Faulty freezer sensor
The freezer sensor is susceptible to frost damage, which can cause it to trigger heating or cooling processes prematurely. Loose connections may also contribute to the ER F5 error code.
Solution: Check the freezer sensor
You will need to remove the inner brackets and trays in your freezer to access the freezer sensor. Use a multimeter to read the resistance and secure any loose cables. If that doesn’t work, you may need to replace the freezer sensor completely.
ER gF—Low water pressure
This error code indicates that the ice maker is not receiving enough water, mainly due to low water pressure. Usually, this code is associated with a full ice maker or a faulty water inlet valve.
Solution #1: Reset the refrigerator
Refer to Solution #1 in the ER DH error code section.
Solution #2: Manually defrost the fridge
Refer to Solution #2 in the ER DH error code section.
Solution #3: Check the water inlet valve
To do this, carefully move the fridge forward until you can see the inlet water valve in the back of the fridge. If the valve is rusted or damaged in any way, you will need to replace it. In less serious cases, all you need to remove the debris in the inlet valve’s filter.
ER HS—Faulty humidity sensor
Using a combination of temperature and moisture, your refrigerator’s humidity sensor can diagnose what’s wrong with your food storage. This error message appears when the humidity sensor no longer sends readings to the control panel.
Solution: Check the humidity sensor
The humidity sensor is a part of the temperature sensor. If you can follow the instructions in this video guide by AppliancePartsPros, you should have an easy time diagnosing the problem and even replacing the part altogether.