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In today’s article, we take you through a comprehensive guide for all your LG refrigerator blink codes.
Here, we shall cover what causes these codes and how to fix them.
We shall try to be as comprehensive as possible.
LG refrigerator blink codes
Before we start, it is important that I mention that most error codes are a result of malfunctioning sensors.
To test these sensors, you will need to have a thermometer and multimeter in hand.
LG refrigerator error code OF F / O FF
This error code indicates that DEMO MODE (DISPLAY MODE) is turned on.
This feature is used when the fridge is on display at a mart/retail store and it usually disables cooling.
Bearing that in mind, you will need to deactivate the demo mode.
Here are the steps to turn off demo mode in LG refrigerators:
- Open one of the refrigerator doors (preferably the right door).
- Press and hold REFRIGERATOR and ICE PLUS buttons (together) for five seconds (for 2018 and earlier models).
- For recent models, press and hold the ice plus and refrigerator functions together. While still holding the refrigerator button, tap the ice plus key three times.
- The control panel should now beep indicating that demo mode has been deactivated. Additionally, the temperature settings should now be displayed.
LG refrigerator error code IS / 1S / 15 / E 15 / E 1S / E IS
This error code indicates either the ice maker sensor is disconnected or that there is an error with the ice maker fan motor.
Most of the time, it is usually just a malfunction that can be cleared easily by simply resetting the unit – unplug it for five minutes and see if this fixes the issue.
If this does not fix your unit, inspect the ice maker fan motor. Is there frost build-up around it?
If yes, you will need to defrost your unit (towards the end of this article, there is a detailed guide on how to manually defrost your LG refrigerator).
Does the ice maker fan motor make a rattling noise when it runs?
If yes, the fan bearings are worn out and you will need to get an OEM LG replacement fan motor.
If the fan motor does not have any problems, then, it is time to inspect the ice maker sensor.
First, measure your room temperature and record it.
Next, use the multimeter to measure the resistance of the ice maker sensor and compare your reading to the ones in the table below:
Depending on the room temperature, if the resistance varies greatly with the values in the table above, then, your sensor is faulty and it will need to be replaced.
Unfortunately, if the ice maker sensor is faulty, you will need to replace the whole ice maker assembly.
LG refrigerator error code 22
A 22 error code error indicates that something is wrong with the compressor relay.
In most cases, this error code is accompanied by a clicking noise every few minutes.
First, open up the back lower panel of your refrigerator and disconnect the compressor relay – you will find it on the side of the compressor.
There are two methods you can use to test the relay:
- Use a multimeter and test it for continuity. If it lacks continuity, then, it is faulty.
- Gently shake it. does it rattle? If yes, it is faulty.
Whichever method you use to test the relay, if it is faulty, you will need to get a replacement relay.
Luckily, you can easily order an OEM LG refrigerator compressor relay on LG’s Amazon store.
Otherwise, if it is not faulty, just disconnect your refrigerator for five minutes to hard reset it – at times it’s usually just an electrical glitch.
LG refrigerator error code 67 / E 67
Usually, this code indicates that the door is not closing properly.
This would arise from two scenarios:
- There is a gap in the door.
- An object inside the fridge is preventing the door from closing fully.
First, look inside your fridge to confirm that nothing is preventing it from fully closing – be sure not to overstock your fridge. It is recommended that you stock it ½ to ¾ way.
If there is nothing preventing the door from fully closing, either the seals are dirty or they are faulty.
So, first, clean the seals by taking a mild detergent and moist rag and gently wipe the door seals.
If the error code still blinks, then, your door seals are faulty and you will need to get OEM LG refrigerator door seals replacement.
LG refrigerator blink codes – fixes to more codes
LG refrigerator error code Er CF / E CF
Typically, this error code indicates that no feedback signal has been received from the condenser fan for more than 65 seconds.
This is caused by static electricity that might be trapped in the electronic control board.
Commonly known as flea power, this static electricity will cause erratic behavior on your device hence the error code.
In most cases, hard resetting the refrigerator usually gets rid of this issue. So, be sure to unplug your unit for at least ten minutes to clear out any erratic static charges still left in the control board.
In other cases, vacuuming the area around the condenser fan usually does the trick – the dirt and clogs might have been the cause.
LG refrigerator error code CO / Er CO /r C0 / Er C0
This code shows that there is a communication error between the control board and the display.
The first and easiest step is to check for any loose wire connections in the wire harnesses connecting the display to the control board.
If there are any, be sure to reconnect them tightly.
Alternatively, unplug your unit for five minutes and see if this fixes your unit.
It is likely that your control board is faulty.
To check this, first remove the control board and inspect it for bad(burnt) spots more so on the underside. Also, check for cracks or other signs of damage.
If it is damaged, you will need to get a replacement OEM board for your refrigerator.
Speaking of replacement boards, have you recently replaced your control board?
If yes, it is likely that you replaced it with a model that is not suited for your refrigerator.
In this case, you will need to get a replacement control board that matches the model number of the control board that came with your refrigerator.
LG refrigerator error code F dH / r dH / Er dH
This error code shows that the refrigerator spent more than one hour trying to defrost and it was unable.
At times, the refrigerator might have resumed normal cooling.
It is important to note that during defrosting, your LG refrigerator will increase the temperature at the evaporator to a preset temp (usually 46⁰F).
Now, if this temp is not reached within one hour, your unit will display the dH error.
Unplug your unit for two minutes and then let it defrost again.
Alternatively, you can perform a manual defrost. Toward, the end of this article, we guide you on how you can perform a manual defrost.
Nonetheless, manually defrosting the unit is not a permanent fix. This is because the dH error code usually indicates that either the defrost heater is broken or the temperature fuse is acting up.
As such, you will need to perform an ohm test on the defrost heater to pinpoint if it is at fault.
Tip: a continuity test will not work on some defrost heaters hence why an ohm test is preferred.
If you are using a manual multimeter, you will need to set it to the lowest ohm setting.
Next, insert the probes into the wire terminals of the heating element.
You should get a reading that is between 10 and 150 ohms.
If you get a different reading or the multimeter display does not change, then, your defrost heater is faulty and you will need to replace it.
Luckily, you can easily order an LG refrigerator OEM defrost heater from LG’s Amazon store.
LG refrigerator error code DS / D5 / Er DS / F SD / r dS
The DS error code usually indicates that there is an issue with the defrost sensor.
This can be a short or a disconnection.
For models that have a single evaporator, they will indicate the Er DS error code.
As for the other two codes, they are for models that have two evaporators depending on which evaporator sensor is acting up:
- r DS / r D5 – this error code shows that there is an error with the refrigerator defrost sensor.
- F DS / F D5 – this error code indicates that there is an error with the freezer defrost sensor.
The first step to fixing this is to unplug your unit for at least five minutes to clear out any static electricity that might be causing the sensor problems.
If this does not fix the error code, you will need to test the defrost sensor’s resistance.
The table above will help you in interpreting your readings depending on your current room temperature.
So, if you get a different reading from the ones in the table, then, the defrost sensor is faulty and you will need to replace it.
Fortunately, you can easily order an OEM LG defrost sensor on their Amazon store.
LG refrigerator blink codes – more errors explained
LG refrigerator error code FF
The FF error code means that there is an issue with the freezer fan.
In most cases, the issue is caused by frost build-up along the fan.
So, be sure to first defrost your refrigerator (towards the end of this article, you will find instructions on how to manually defrost the unit).
Next, carefully inspect the fan motor wiring harness for a loose connection – it could be that one of the harnesses is loose.
If you are able to locate any, be sure to connect them tightly.
Finally, you will need to inspect the fan motor.
Try rotating the fan blades. Do they rotate freely?
If no, you just found your culprit and as a result, you will need to replace the freezer fan motor assembly.
Luckily, you can easily order an OEM LG freezer fan motor on LG’s Amazon store.
LG refrigerator error code FS / F5 / Er F5 / Er FS / E FS / E F5
This code shows that something is up with the freezer temperature sensor.
In some cases, it is usually just an electrical glitch that leaves static electricity in the electronic control board that affect the freezer temperature sensor.
To eradicate this, unplug your unit for five minutes to clear out all the electrical charges that may be to blame.
In other cases, it could be a shot or even a disconnection hence the sensor is not able to maintain contact with the plug.
To fix this, first inspect its connection for any loose wire harnesses. If you find any, be sure to reconnect them.
Still, if your refrigerator is still blinking the FS error code, chances are that the temperature sensor is faulty.
As a result, you will need to test its resistance using a multimeter.
Now, compare your readings to the ones in the table above.
If they are different, then, your temperature sensor is faulty and you will need to replace it.
Luckily, you can easily order an OEM LG refrigerator temperature sensor on their Amazon store.
LG refrigerator error code gF / 9F
This code shows that the water pressure is low. Additionally, the code may also indicate that the flow sensor is malfunctioning.
First check your water pressure.
If it is below 20 psi, then, you will need to increase it. Nonetheless, the optimum water pressure is between 40 and 120 psi.
Is the ice maker overfilling with water?
If yes, then, the flow sensor (determines how much water flows to the ice maker) is faulty. Consequently, you will need to get a replacement flow sensor.
LG refrigerator error code HS / H5
This code indicates that something is up with your humidity sensor.
Start by looking for loose connections in the humidity sensor wire harness.
If there are any, simply reconnect the wire harness to fix the error.
Otherwise, the sensor is faulty and will need to be replaced.
Fortunately, LG offers OEM humidity sensors that you can easily order on their Amazon store.
LG refrigerator blink codes – more errors explained
LG refrigerator error code IF / 1F / Er 1F / F1 / FI / Er F1
Your LG refrigerator will show this error code when it senses a problem with the ice maker fan.
In most cases, this will occur when there is ice/frost build-up around this fan.
As such, you will need to defrost your unit (you will find the defrosting steps at the end of this article).
Does the fan rattle as it runs?
If yes, its bearings are worn out and you will need to get a replacement fan.
And finally, if your model is a French-door unit, inspect the gasket located alongside the door.
If it appears torn or damaged, then, you just found your culprit. Consequently, you will need to replace it.
LG refrigerator error code iT / IT / 1T/ lT / E IT / IT E /
As for this error code, it normally indicates a defect in the icemaker unit.
First, you will want to make sure that the ice maker unit is frozen over.
If it is, you will need to defrost it (again, the manual defrost instructions are towards the end of this article).
Next, check and test the motor that turns the ice maker.
For this, all you will need to do is reset the ice maker.
You see, resetting the ice maker is kind of a diagnostic test also as it tests all the ice maker parts.
Moreover, resetting the ice maker will clear out any electrical charges that might be leading to the ice maker’s error.
Now, if you note that the ice maker does not rotate during the reset procedure, then, it is faulty and you will need to replace it.
Unfortunately, you can’t replace the ice maker motor on its own. Instead, you will need to get a replacement ice maker assembly depending on your refrigerator model.
LG refrigerator error code rF
The rF error code usually indicates that something is wrong with the refrigerator’s fan motor.
Mostly, this is caused by frost buildup around the motor.
Bearing that in mind, begin by defrosting your refrigerator (again, you will find the procedure towards the end of this article).
Does the fan motor rattle or make loud humming noises as it runs?
If yes, it means that it is faulty and you will need to get an OEM replacement fan motor.
LG refrigerator error code rS / r5
When your fridge starts blinking this code, it is an indication that something is wrong with the refrigerator sensor.
This could be anything from flea power to a disconnection to a shot.
So, to fix the issue, begin by hard resetting your refrigerator – unplug it for five minutes to clear out all the electrical charge.
If this does not fix your issue, inspect the refrigerator sensor wire harness connection to see if it is loose.
If it is, be sure to reconnect it properly.
Finally, it could be that your refrigerator sensor has reached its end of life and will require to be replaced.
But, before we crucify it, why not test its resistance just to be sure?
Using your multimeter, test the resistance of your refrigerator sensor and compare the results to those in the table above.
If they defer greatly, then, the sensor is faulty and you will need to replace it.
Fortunately, you can easily order an OEM LG refrigerator sensor on LG’s Amazon store.
LG refrigerator blink codes – more blink codes
LG refrigerator error code rT
This error code normally indicates a shot or open room temperature sensor.
As a result, inspect if there is a loose connection to the sensor.
If there is, reconnect it and see if this clears the error code.
Other than that, it could be that the sensor has reached its end of life.
To see if this is the case, test its resistance and compare your readings to those in the table above.
If they vary greatly, then, your sensor is faulty and you will need to get a replacement open room temperature sensor.
LG refrigerator error code SS / 55
The SS error code means that something is up with the pantry sensor.
First, carefully check if it has a loose connection.
If it does, reconnect the sensor and see if this clears the error.
Otherwise, your pantry sensor is faulty and you will need to replace it.
LG refrigerator error code AD / LG refrigerator error code dL, e dl / LG refrigerator error code dr, e dr
When your LG fridge displays this code, it is normally indicating that there is an error with the hall sensor, motor or auto drawer module connection.
To be more specific, the dr code indicates an error with the auto drawer module on the right while the dr code is for the left side.
In most cases, unplugging your unit for five minutes should fix the error.
LG refrigerator error code AS / L AS / r AS
Your fridge will blink this code when the auto-door motor is in operation and the reed switch is in the open state.
More specifically, the L AS code represents issues with the left reed switch whereas the r AS shows an error with the right reed switch.
Consequently, you will need to test the reed switch.
To do this, place a magnet on the reed switch and see if the refrigerator’s interior lights turn off.
Other than that, there are certain models that have a reed switch with a push button on them. To test these models, push the switch and see if the interior lights turn off.
If the interior lights do not turn off, then, the reed switch is faulty and you will need to replace it depending on your model.
LG refrigerator blink codes – fixing additional codes
Your LG refrigerator may blink other codes such as…
LG refrigerator error code 5b, Sb, S6, 56
To start with, this is not an error code.
Nonetheless, when this code blinks, it is usually indicating that your refrigerator is in Sabbath mode.
This mode is used by Jews on sabbath and other Jewish holidays.
When this mode is on, you will note that some functions of your refrigerator such as the alarm and the dispenser will not be working.
To turn off this mode manually, press and hold the wifi and freezer buttons for three seconds.
Similarly, to turn this mode on, simply touch the display followed by pressing and holding the wifi + freezer buttons together for three seconds.
Tip: sabbath mode automatically turns itself off after 96 hours.
LG refrigerator error code Od, 0d, E OD
Usually, this code indicates that something is wrong with the WiFi modem.
Also, there could be a communication error between the WiFi modem and the display MICOM.
Start by inspecting the wiring connections between the display control board and the wifi modem.
If there are any loose connections, be sure to reconnect and secure them tightly.
If the connections are okay, you will need to replace the wifi modem and if the problem persists, replacing the display control board should do the trick.
LG refrigerator error code c1 / C1 / CI
The C1 error code shows a commutation error between the dispenser and the LCD display.
First, unplug your unit for five minutes and see if this clears the error.
Next, check the wiring connections between the dispenser and the display.
If they are loose, reconnect them properly.
While at it, carefully inspect these wire connections for signs of damage.
Other than that, inspect the control board for signs of burning or any other damage. If it appears faulty, you will need to replace it and be sure to get one with the same model number as the old one.
LG refrigerator blink codes CL E, CH E, E CL, E CH
CL E and E CH error codes usually indicate that there is a possible leak in the sealed system, a bad compressor, some restriction in the refrigerant flow or a defective valve.
To better differentiate these codes, CL E (E CL) code shows a low side part refrigerant leak.
The low side cycle leakage (E CL/CL E) typically has high chances of being refrigerant leakage from the evaporator.
As for CH E (E CH) code, it usually has a high possibility of being a refrigerant leakage from the condenser.
To clear the code, first open the right-hand side refrigerator door.
Keeping it open, press the freezer and refrigerator temperature buttons in unison three times in a row.
Do note that this only clears out the error code and it will keep on returning after some hours.
Since these codes deal with refrigerant leakage, you will want to get an EPA-licensed technician to have a look at your refrigerator as soon as possible.
This is because the leaked refrigerant is harmful both to you and to the environment hence only EPA-approved technicians are allowed to deal with it.
How to manually defrost your refrigerator
- Unplug the refrigerator.
- Remove all food and ice from the ice bin.
- Leave the refrigerator doors open and wait for a minimum of eight hours for the unit to defrost. Be sure to put towels inside the unit – they will soak up any excess water once the frost melts.
- Once the eight hours are over, use a dry towel to remove any excess water/moisture that may be left inside the fridge and freezer compartments.
- Plug in your refrigerator and wait for 24 to 48 hours for it to return to normal operation.
- To prevent frequent frost build-up, be sure to confirm that you are not blocking the vents inside with foodstuff and that the unit is properly leveled.
To prevent future frost build-up, be sure to confirm that the doors are closing properly. If they are not, you will see the error code 67.
Follow the steps we have outlined above to fix your door if it is not closing fully.
Also, if the frost build-up is along the walls of the freezer compartment, you will need to check the door alignment and leveling of the refrigerator.
Since these leveling instructions vary by model, check out LG’s leveling instructions and filter according to your model.
LG refrigerator blink codes – frequently asked questions (FAQs)
Does LG refrigerator have a reset button?
Unfortunately, LG refrigerators do not have a reset button.
Nonetheless, to reset them, simply unplug them for five minutes to let all electrical charges to flow out from the control board.
LG refrigerator blink codes – final words
There you go.
We hope that by now, you have fixed your LG refrigerator error codes.
As we conclude, when replacing parts, be sure to get an instructional video on YouTube to guide you along.