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LG Refrigerator Beeping: 9 Causes + How To Stop It (2023)

LG Refrigerator Beeping

Uh-oh, do I hear your LG refrigerator beeping?

Well, it can happen for a lot of reasons. The most common one is temperature change.

But don’t worry! Stopping your fridge from beeping is super easy.

I swear, even the most non-techie person in your household can do it.

So, shall we?

Read on to discover:

  • How to mute LG fridge door alarm beep.
  • 9 reasons why your LG refrigerator is beeping.
  • What do the different beeping patterns indicate.
  • 9 effective ways to stop the fridge’s beeping issue.
  • And so much more…

Why does my LG fridge beep?

Your LG fridge beeps because its internal temperature is too high. This can happen if the fridge door has been left open. Or when its temperature is set higher than the recommended setting. Damaged door seal, broken door switch sensor, dusty condenser coils, and faulty PCB can also be the reason.

LG refrigerator (keeps) beeping: 9 causes + how to stop it

#1: Fridge door left open

Is your LG refrigerator beeping every 30 seconds?

Then, perhaps you’ve left your fridge door open for too long.

Keeping the fridge door open for more than 2 minutes can affect your appliance’s cooling function. That’s why LG built an alert system that will notify users if this happens.

That beeping pattern is referred to as “Door Alarm Beep.” 

What it does is create a beeping sound every 30 seconds to notify the user about the problem. And it’ll continue to beep until the appliance is closed.

How to stop it:

To stop the beeping, ensure that the fridge door is closed properly. Upon closing it, you should hear a quick tap sound.

Here’s how to know whether the door is securely closed:

  1. Grab the fridge door handle.
  2. Try to pull the door open lightly.

If you can open it without an inch of effort, then the fridge door wasn’t closed in the first place. And that’s what’s causing the beeping sound.

To resolve it, just gently and securely close the fridge door. Ensure that all sides of the door lay flat on the fridge’s opening.

The beeping sound should automatically stop after doing this.

Note: You can also mute the “Door Alarm Beep” by pressing the “Alarm/Clock” button at the right side of the screen once. 

#2: Fridge door not closing

“I’ve tried closing the fridge door. But it won’t close.”

If that’s the case, then there must be something blocking the fridge door.

The shelves and bins on the fridge, if not assembled properly, can cause the fridge door to not close. And so cause the fridge’s internal temperature to get warm.

When that happens, your:

  • Unit will defrost.
  • Food supplies will spoil.

I mean, you wouldn’t want to troubleshoot more problems in your fridge, don’t you?

How to stop it:

If your fridge door isn’t closing, reassemble and clean your fridge interior.

Here’s what you should do:

  1. Unplug the refrigerator.
  2. Empty the shelves and bins.
  3. Remove them from the unit.
  4. Use a damp cloth to remove debris stuck on the bin holders.
  5. Wipe clean the shelves and bins.
  6. Reassemble them back in the fridge.
  7. Place your supplies on the shelves. Make sure nothing is sticking out.
  8. Replug your refrigerator.

The beeping sound should stop once the fridge door is securely closed.

You may also wonder: What is a smart inverter on a fridge?

#3: Too high internal temperature

If you don’t see visible problems with the fridge door, check the internal temperature.

Refrigerators aren’t supposed to get higher than 59°F (15°C). As this can spoil the food in the fridge, especially the highly-perishable ones.

Once the internal temperature goes beyond that, your LG fridge will beep to alert you about it.

If your fridge model has a front display panel, you may also see the temperature display flashing.

How to stop it:

There’s one quick way to resolve it. And that’s to manually adjust the fridge and freezer temperature.

Here’s how to do it:

  1. Locate the control panel.
  2. Press the “Refrigerator” button repeatedly until you reach your desired setting.
  3. Press the “Freezer” button repeatedly until you reach your desired setting.

Tip: Connect your fridge to the LG ThinQ app. That way, you can adjust its settings remotely.

LG fridge’s default and recommended temperature settings are as follows:

  • Fridge: 37°F (3°C).
  • Freezer: 0°F (-18°C).

#4: Bad ventilation

Did you know that the location of your fridge matters?

It does, as its location and proximity with other appliances affect its cooling function.


When your fridge is too close to a wall or other heating appliance (e.g., oven), the fridge’s vents will be blocked. And so, the air inside it won’t circulate properly.

When that happens, your fridge will get warm. And it may even stop cooling if not addressed for years.

Similarly, the arrangement of your food supplies on the shelves also contributes to it. As overstuffing also limits the airflow inside the fridge.

How to stop it:

To stop the beeping due to bad ventilation, move your fridge to somewhere more open. Or at least don’t place it next to other heating appliances.

If it’s in a built-in cabinet, provide clearances around it. 

Here’s a guide to follow:

  • Top: 4 in (100 mm).
  • Sides and rear: 2 in (50 mm).

When restocking your fridge shelves, make sure to provide at least 2 in (50 mm) clearance around the fridge walls.

#5: Dirty condenser coils

“My fridge is beeping and isn’t cooling…”

Oh, it looks like your fridge’s condenser coils are dirty.

Condenser coils are one of the major components of your fridge. Its job is to cool your appliance. 

But it can fail to do so once it becomes too dirty.

Since it’s placed at the back of the fridge, it accumulates dirt and dust over time. Causing it to get too warm. Which confuses its sensor and system.

How to stop it:

What you should do is clean the condenser coils. Doing this helps maintain your fridge for optimal performance. 

Note: Clean the condenser coils once every 6 months.

Here’s how to do it:

  1. Unplug the refrigerator.
  2. Pull out the fridge to access its back panel.
  3. Unscrew the panel cover.
  4. Use a vacuum to remove dirt and dust on the condenser coils.
  5. Return the panel cover.
  6. Then, place back and replug the fridge.

#6: Ice build-ups

Ice Build-Ups

You must be thinking…”Okay, so warm temperature causes the beeping.”

Well, that’s correct. But excessive cooling can also cause the issue. 

Ice build-ups in the fridge can also affect its cooling function. As this confuses the temperature sensors and sometimes blocks the airflow as well.

How to stop it:

Most LG fridges today have an auto-defrosting system. Meaning fridge models today automatically defrost themselves to avoid ice build-ups.

But they can sometimes fail to auto-defrost due to other problems such as having a damaged defrost timer.

For that case, you have to manually defrost your LG refrigerator.

#7: Damaged or loose door seal

If the problem persists, check the door seal of your unit.

Note: It’s the rubber attached to the inner side of the fridge door. And its primary function is to contain the cool air in the fridge.


Sometimes, the fridge door seal can get loose or broken due to old age and physical damage. Which results in air holes and gaps.

When that happens, wair air enters the appliance. Causing it to get warm and fail to properly preserve stored food on it.

Here’s are some signs of a bad door seal:

  • Tears.
  • Bents.
  • Molds.
  • Bent edges.
  • Loose rubber.

How to stop it:

If you see any signs of damage on your fridge door seal, replace it immediately.

Before buying one, know your LG refrigerator model. So that you can get a replacement that’s appropriate to your unit.

To remove an LG fridge door seal:

  1. Unplug the appliance.
  2. Open the fridge door.
  3. Grab one side of the door seal.
  4. Then, gently pull it out until all sides are removed.

To replace an LG fridge door seal:

  1. Place the corners inward.
  2. Then, push the sides to secure them.

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#8: Broken door switch sensor

Another possible reason why your fridge is beeping is that the door switch sensor might be broken.

“What is a door switch sensor?”

It’s a tiny component, usually on top of your fridge. Its job is to determine whether the fridge door has been closed properly.

Supposed the door has been left open, the door switch sensor will report back to the control board. And that’s when the beeping begins.

How to stop it:

Consider your door switch sensor broken if:

  • The fridge is beeping and has no interior light.
  • The fridge is beeping once or twice. And it’ll only stop when you open and close all the doors once.

If you experience any of these, replace your door switch sensor.

Is your fridge still under warranty? If yes, you can get a free replacement and service from LG customer care.

If not, then you have to replace it yourself.

To do that:

  1. Unplug the unit.
  2. Unscrew the compartment on top of the fridge.
  3. Remove the wires connected to the door switch sensor.
  4. Place the new door switch sensor.
  5. Secure the compartment.
  6. Then, replug the unit.

You can also watch this video to learn how to access and replace an LG fridge door switch sensor:

#9: Faulty PCB

Is your fridge still beeping?

Then, its control board (PCB) must be faulty.

This is the “brain” of the fridge. And it controls and connects all components. So, once it gets broken, some, if not all, of your fridge’s functions may fail.

“What causes it to be faulty?” 

Several things can cause it to get damaged and worn out. But some of the most common reasons are:

  • Old age.
  • Short circuit.
  • Power surges.
  • Power outages.
  • Physical damage.

How to stop it:

There’s only one way to fix a faulty fridge PCB, and that’s to replace it.

Warning: The replacement process includes disconnecting of wires. So, unless you’re a professional technician, call LG support for service. 

To replace an LG fridge PCB:

  1. Unplug the refrigerator.
  2. Access its back panel.
  3. Unscrew the upper back panel cover.
  4. Disconnect all the wires attached to the PCB.
  5. Gently pull out the faulty PCB.
  6. Place the replacement.
  7. Connect the wires.
  8. Secure the back panel cover.
  9. Then, place back and replug the unit.

Read also: 7 Steps To Reset Your LG Refrigerator In 19 Seconds