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Samsung Air Conditioner: Complete Troubleshooting Guide

If you own a Samsung air conditioner, you know that you have a reliable appliance for your home cooling needs. But every good thing has a downside, and your Samsung AC may present issues now and then.

No need to panic, though. We thought of you and gave you a solution for every Samsung AC problem in this article, whether the problem can be fixed DIY or requires the reliable service of a trained HVAC professional.

Jump straight to the issue affecting your Samsung air conditioner using this table of contents: 

The Easiest Fix For All Samsung Air Conditioner Problems

If you don’t have the time or expertise to troubleshoot and fix your Samsung air conditioner, the smart decision — as you know — is to get an air conditioner repair expert to fix it for you.

The problem is that finding a trustworthy and affordable repair service — and actually booking an appointment with them — can feel like pulling teeth.

Some services never call you back. Others charge criminally high rates. The best options are often booked out for months… and the worst don’t even fix your air conditioner. (But they charge you for it anyway.)

To save you from that teeth-grinding frustration and bring you fast and affordable repairs, I’ve partnered with a helpful company called Networx. They work with thousands of top-rated contractors across the United States, and they make it easy for you to get free A/C repair quotes from the best repair services near you.

Here’s how it works in 8 easy steps:

  1. Go to the form below.
  2. Answer a few short questions about your problem and provide basic contact information. (Your information will only be used to provide you with air conditioner repair quotes.)
  3. If you have a ducted Samsung air conditioner, select “Central A/C – Service or Repair” in the the “Service Needed” section.
  4. If you have a ductless Samsung air conditioner, select “Ductless A/C (mini split) Repair” in the “Service Needed” section.
  5. Click the “Get Free Quotes” button when you’re done.
  6. Our repair service partner will contact multiple vetted A/C repair experts near you. They’ll explain your problem and ask each service to contact you with a free quote.
  7. You’ll receive an email or phone call with repair quotes from each service. You can choose the most affordable option and schedule your repair directly with them.
  8. They’ll come to your house and fix your air conditioner. Problem solved!

Using this form to find the best repair rates is 100% risk-free. There is zero obligation to hire any of the vetted contractors who contact you.

Fill out the form now to find the most affordable repair services in your area.

Samsung Air Conditioner Not Heating

If your Samsung air conditioner is not heating or not heating sufficiently, the AC setting may be wrong, the AC may not be warmed up yet, or you have a wrong-sized AC. A wrong-sized AC is more common and should be avoided by consulting the standard AC buying guidelines before making a purchase.

Samsung air conditioning units can instantly switch from cooling to heating and allow you to control the amount of warm air that you want in the room. 

But, if your Samsung AC is not heating or not heating sufficiently, one of these 3 issues could be the cause. 

Wrong Samsung AC Mode 

Your Samsung AC allows you to move from one of the 5 modes (from Auto to Cool to Dry to Fan and finally to Heat) using the remote control.

If your Samsung AC is set on the other modes and not on the Heat mode, it will not blow hot air. 

To switch from Cool to the Heat Mode, follow these steps:

  1. Press the power button on the remote control to switch on your Samsung air conditioner. 
  2. Press the Mode button and move from one mode to the other until you can choose the Heat Mode.
  3. Use the increase (+) and decrease (-) buttons to set the desired temperature.
  4. If needed, set the fan speed using the increase (∧) and decrease (V) buttons.

Air Conditioner is not Warmed Up

When you switch your Samsung AC to the Heat Mode, the fan will not work for 3 to 5 minutes. This is a normal occurrence that allows the conditioner to warm up and not blow cold instead of warm air.

What to do with a Samsung AC that’s not Warmed Up

Simply wait for the 3-5 minutes to elapse and your Samsung AC fan will turn on and start blowing heated air.

Wrong-sized Air Conditioner

BTUs are a measure of the amount of energy used to remove warm or cold air from a room. 

As such, if you have a Samsung air conditioner with a BTU rating that does not correspond to the size of the space to be heated, it will not only fall short of supplying the required cool air, but it will also not provide the desired warm air when you use it to heat. 

How to Tell if Your Samsung Air Conditioner is Wrong-sized

Calculate the space you need to heat by multiplying its width and length and use the Energy Star Air Conditioner Buying Guide to determine if your Samsung AC falls short of the BTUs needed to heat the space.  

Note that other factors may require you to adjust the sizing of your Samsung AC and should be considered before making a purchase. These include: 

  • Climate.
  • Ceiling height.
  • Home insulation (walls, windows, and doors).
  • Home design (for example, open floor designs require more BTUs than enclosed rooms).
  • Unit location (for example, a room with lots of cold objects will require more BTUs).

How to Fix a Wrong-sized Samsung AC Issue

Since air conditioners are primarily purchased for cooling, when using your Samsung AC for heating, combine an additional heating appliance with your AC if the heat from the air conditioner is insufficient.

Also, talk to an expert about how to account for the mentioned factors when buying an air conditioner.

Samsung Air Conditioner Not Cooling At All

If your Samsung air conditioner is not cooling at all, it has voltage output problems or you have wrong temperature settings. A wrong thermostat setting is more common and can easily be corrected by setting the AC to Cool mode and decreasing the temperature to the desired level.

Wrong Temperature Settings

An AC’s set temperature should be lower than the room temperature to be able to cool. If yours is set at a higher temperature, it will not be cooling at all.

Also, a Samsung air conditioner set on the Fan mode isn’t really cooling but just blowing air. If your AC is set on Fan, you will see the Fan Mode on the panel and no temperature reading.

How to Fix Wrong Samsung AC Temperature Settings

If your Samsung AC shows Fan Mode on the panel, change it to the Cool Mode, and use the increase (+) or the decrease (-) buttons to set the AC at a temperature below the room temperature. Your AC should then start blowing cold air. 

Voltage Output Problems

Air conditioners have a voltage requirement that should be supplied to them consistently. That means you should check your AC power requirements and the power source specifications to ensure that they match.

If your Samsung AC has a power requirement of 240V and the power source gives a maximum of 220V, then the supplied power is insufficient and your unit won’t cool. 

Also, places with frequent power fluctuations can have sudden low or high power supply, an issue that introduces the question “Is a voltage stabilizer required for Samsung air conditioner?” 

How to Determine if your Samsung AC has Voltage Output Problems

To determine if your Samsung AC is not cooling because of voltage output problems:

  1. Check your Samsung AC power requirements and compare that with the power source specifications to ensure that they match (AC power requirement is not more than source power supply).
  2. If your Samsung AC has a voltage stabilizer, check to see if it is rated for the same amount of voltage as the AC.

How to Fix Voltage Output Problems with your Samsung AC

To ensure that your Samsung AC cools with the right voltage supply and avoid damaging your unit with power surges, do the following fixes or/and preparatory decisions:

  • Ensure the power source for your Samsung AC has the same (or higher) voltage as your unit’s power requirements.
  • Buy a Samsung AC model with an S-UTR compressor as these models do not require an extra voltage stabilizer. Instead, the AC automatically stabilizes the voltage to protect the appliance from power fluctuations. Models with an S-UTR compressor are usually those in the Platinum and Diamond series.
  • If your Samsung AC doesn’t come with an S-UTR compressor, use an external stabilizer to ensure constant voltage running into your unit. The stabilizer should not be lower on voltage than the AC requirements.
  • If your unit uses an external stabilizer with a lower voltage than the AC voltage requirements, replace the voltage stabilizer. 

Samsung Air Conditioner Not Turning On/Switching On

A Samsung air conditioner that won’t turn on has power issues caused by a faulty circuit breaker, a bad wall outlet, or a damaged power cord. These are not common issues if the electrical wiring is done well, but when they happen, they should be attended to by a trained electrician.

Faulty Circuit Breaker

If the circuit breaker on the main electrical panel trips because of a power surge, your Samsung air condition won’t turn on. 

Likewise, a damaged circuit breaker will compromise the power supply to your unit and cause it not to turn on.

How to Determine if the Circuit Breaker is Bad or Tripped

Open the panel that closes the circuit breaker box and check to see if the circuit breaker controlling the power outlet for your Samsung AC could have tripped (the switch will be down and not up). If the circuit breaker is not tripped, it could be faulty altogether. 

How to Fix a Tripped/bad Circuit Breaker 

Simply turn back on a tripped circuit breaker by lifting it up if it’s down. If the circuit breaker is not tripped but appears to have other issues or is damaged, contact a reliable electrical technician.

Damaged AC Power Cord

An AC power cord that’s damaged may not just fail to transmit power, but it can also cause accidents. 

How to Diagnose a Faulty Samsung AC Power Cord

To determine if your Samsung AC power cord has issues:

  • Look for signs of fraying or other forms of damage on the power cord. If there are any, do not use the power cord!
  • If there are no physical signs of damage, test the power cord for continuity.
  • If the cord does not transmit power and the wall outlet works with other appliances, contact the supplier for a power cord replacement.

How to Fix a Faulty Samsung AC Power Cord

Do not attempt to use or repair a Samsung AC power cord with signs of fraying, other forms of damage, or one that’s not transmitting power. 

Instead, contact the supplier for a replacement or find a Samsung service center near you from the Samsung Service Center page. You can also book an online service appointment on the same page.

Also, the Samsung manufacturer directs that a Samsung AC should only be used with the power cord that’s sold with it and no extension cords should be used. Doing so could cause fire accidents or electric shocks. 

Bad Wall Outlet

A bad wall outlet that’s not transmitting power could have shorted or is dead. A tripped circuit breaker could also be behind a wall outlet that does not transmit power.

How to Check if a Wall Outlet is Bad

Try plugging other appliances other than the Samsung AC and see if they are powered from the same outlet.

You can also plug the AC into a different wall outlet to see if it works.

How to Fix a Bad Wall Outlet 

Check first if the circuit breaker is tripped and turn it back on if it is. If it’s not, unplug the Samsung power cord and leave it unplugged for 30 seconds to reset it, and then try plugging it again.

If the wall outlet still does not work and the power cord and circuit breaker are working, call a trained electrician to resolve the issue.

Samsung Air Conditioner Not Blowing Cold Air

If your Samsung air conditioner is not blowing cold air, it has a dirty air filter, dirty condenser coils, refrigerant issues, high temperature settings, or the AC is undersized. A dirty filter is the most common and should be prevented by cleaning the filter every 2 weeks in the cooling season.

Dirty Air Filter

Poor airflow in an air conditioner is the number one cause for a conditioner that’s not blowing cold air. This can be caused by blocks at the airway, but most especially by a dirty air filter.

How to Diagnose a Dirty Samsung AC Air Filter

Your Samsung AC will light up a filter clean reminder when the filter is dirty and needs cleaning. However, you can also open the outer casing of your AC to reveal the filter and check if it’s covered with dirt.

How to Clean a Dirty Samsung AC Air Filter

Samsung advises that you clean the air filter every 2 weeks especially during summer to avoid AC inefficiency for poor airflow.  

Also, consider the environmental conditions of your area to determine the routine for your Samsung AC air filter cleaning: heavily polluted cities and windy areas will require you to clean the air filter more often. 

Here’s how to clean your Samsung AC air filter:

  1. Remove the air filter by opening the front panel and pulling the filter towards you, then slide it down.
  2. Wash the filter at a sink under running water. A soft brush and mild detergent can be used to remove any dirt stuck to the filter, but scrubbing with hard brushes or abrasives should be avoided. 
  3. Leave the filter to dry in a ventilated area (not under direct sunlight). Never replace a wet filter into the AC as this could cause a bad odor, and so would drying it in a humid area.
  4. Put the filter back in its place and close the front panel.

Note: The Samsung AC air filter removal and cleaning details may vary with the model. Check the Samsung videos and instructions on how to clean air filters for the different models.

Dirty Condenser Coils

Dirty outdoor condenser coils compromise the flow of the cooling refrigerant. This means that the heat from the cooling process will not be dispelled from your Samsung AC, compromising the efficiency of your cooling unit and limiting the amount of cold air that’s blown from your AC.

How to Diagnose Dirty Samsung AC Condenser Coils

To check if the condenser coils are dirty, remove the cover of the outdoor unit of your AC to see if the coils are dirty and proceed to clean them.

How to Clean Dirty Samsung A Condenser Coils

It is advisable to call an HVAC expert to clean dirty Samsung AC condenser coils. But, if you decide to go DIY, follow these steps to clean the coils:

  1. Turn off your Samsung AC and wait for it to cool.
  2. Remove the outer casing of the outdoor unit to reveal the coils.
  3. Use a soft brush vacuum attachment to get rid of the loose dirt and debris clogged between the condenser fins. Be sure to avoid hard brushes as condenser fins are delicate.
  4. Spray the fins with water using a hose at low pressure. This will protect the fins from damage or bending. Pay attention not to send any water to the electrical components.
  5. Leave the coils open for the time required to dry them completely.
  6. Once the coils are dry, place back the outer casing and start running your AC.

Refrigerant Issues

The refrigerant in your AC absorbs the heat produced during the cooling process. To function efficiently, your Samsung AC has to be charged with the right level of refrigerant. 

Since your AC does not use up refrigerant, a low refrigerant charge can only be an installation error or be caused by a leak. 

They are two refrigerant issues that will affect your Samsung AC: 

  • Low refrigerant charge.
  • The refrigerant is not metered properly and there’s very little of it going into the cooling coils. 

In both cases, your Samsung AC cooling capacity will be limited or eventually lost, which is why your AC won’t be blowing cold air.

How to Diagnose Refrigerant Issues with your Samsung AC 

You won’t be able to diagnose refrigerant issues on your AC. Instead, you need the services of a reliable HVAC pro to measure the Freon level with an AC manifold gauge.

How to Fix Refrigerant Issues with your Samsung AC 

An HVAC that’s checking refrigerant issues on your AC will need to repair the leak that’s causing low refrigerant levels. This implies:

  1. Evacuating the refrigerant from the AC.
  2. Spotting and repairing the leak.
  3. Recharging the AC with the correct levels of refrigerant. 

If your AC has improper refrigerant metering, the HVAC will identify and repair the underlying issue.

Be advised that refrigerant AC repairs are costly and sometimes it is cheaper to buy a new unit. As such, finding a sincere HVAC pro who explains the process and the costs from the beginning is crucial. Ask for a quotation before starting any refrigerant-related repairs.

High Temperature Setting

If your Samsung air conditioner is set at a temperature that’s higher than the room temperature, it is not going to blow cold but warm air (especially if you have a heating and cooling unit).

How to Check and Fix High Samsung AC Temperature Settings

Follow these steps to fix a Samsung air conditioner that has a high temperature setting: 

  1. Ensure your AC is working on the Cool Mode.
  2. Check the current room temperature and compare the reading on your AC’s panel.
  3. Use the decrease (-) button to set the AC temperature below room temperature then wait for 3 minutes for the AC to start cooling.

Undersized Air Conditioner

An undersized Samsung AC is one whose heating capacity in BTUs/hour is lower than what’s recommended for the space being cooled in square feet. 

This does not give you the required temperature and comfort as the AC’s compressor has to work longer cycles or run continuously to maintain the required temperature. 

The resulting situation is a dysfunctional compressor, unchanged humidity levels, and most especially no cool air is blown from your AC.

How to Diagnose an Undersized Samsung Air Conditioner

Check the capacity of your Samsung AC system and calculate the square footage of the space you want to be cooled by the unit (multiply width and length). 

See the Energy Star Room Air Conditioner Buying Guide to make out if your Samsung AC capacity corresponds to the size of the space to be cooled.

How to Fix an Undersized Samsung Air Conditioner

It is best to find out if the capacity of the Samsung AC you are purchasing is the right size for the space you want to cool from the very beginning.

If you already have a Samsung AC and find out that it’s smaller than what’s required to heat your space, you’ll need to replace your cooling unit for the right size. 

Even though this sounds expensive, buying a new unit is cheaper than the perpetual high power bills that come with a continuously running Samsung AC.

Samsung Air Conditioner Not Responding To Remote Control

If your Samsung air conditioner is not responding to the remote control, the remote control is too far from the AC, the remote control sensor or thermostat’s sensor has failed, the remote control batteries are dead, or the batteries’ +ve pole is fit to the side of the –ve pole or vice versa.

Remote Control Proximity to AC

Remote controls for appliances have a limit remote sensor distance between them and the appliance. 

So, if you point your Samsung AC remote control at the air conditioner and push a command button but no response, you might be too far from the AC. For example, some Samsung cooling units require a remote sensor distance of 20′ or less. 

Also, furniture and other large objects standing between the remote control and the AC block the sensor at the tip of the remote control.

How to Fix your Samsung AC Remote Control’s Proximity to the AC

To enhance the efficiency of your Samsung remote control, do the following:

  • Ensure you are close enough to the cooling unit when you press commands on your Samsung AC remote control.
  • Move any furniture or objects in front of your cooling unit to create a clear path for the Samsung AC remote control’s sensor.

Remote Control or Thermostat Sensor Failure

Both the AC thermostat and the remote control have sensors that communicate with each other to effect commands.

If the commands you are sending to the AC are not effected when you press buttons on the remote control pad, either of the sensors could be dead.

How to Diagnose Dead AC Thermostat and Remote Control Sensors

The thermostat sensor is located near the evaporator coils. Check to see if the wire is out of position or broken.

A faulty remote control sensor will not show the LED light at the tip of the remote control, which also means commands are not being sent to the AC.

The sensor in a remote control that has been dropped may also detach from the internal components and stop working.

How to Fix Dead AC Thermostat and Remote Control Sensors

If the sensor of the thermostat appears to be bent out of place, simply bend it back into place and it should work. If instead the wire is broken, the sensor will need to be replaced.

A remote control whose wire is detached from the internal components can be repaired. But if it’s giving trouble, you are better off spending a few bucks to buy a new one.

Note that dirt and grime can also reduce the efficiency of the sensors. Simply clean the sensors with a moist soft cloth in that case.

Remote Control Battery Life and Polarity

Your Samsung AC is charged by 1.5V AAA-type batteries. If these have run out of charge or are wrongly placed so that the positive and negative charge poles are interchanged, your remote control won’t work.

How to Diagnose Spent Remote Control Batteries and Swapped Poles

Use a tester to check if your Samsung AC batteries are still charged and check if the batteries are placed correctly.

You will notice that the remote control struggles to send commands or you have to press harder than usual when the batteries’ charge is low.

Depending on the model, your Samsung AC remote control may also show an indicator for exhausted batteries.

How to Fix Spent Remote Control Batteries and Swapped Poles

Replace used-up batteries in your Samsung remote control and correct the position of batteries that are put with wrong poles on the wrong side. This is easy to do, but just in case you need it, here are the instructions to follow:

  1. Follow the arrow on the rear side of the remote control to push the lever and pull up the cover. 
  2. Insert the AAA batteries, ensuring both the +ve and –ve poles go to the assigned sides. 
  3. Place the cover and slide it back in place until you hear a click. 

Note: Dirt in the battery chamber can reduce the sensitivity of your remote control to the battery charge. In this case, use a cotton swab with a bit of isopropyl alcohol to clean the dirt.

Samsung Air Conditioner Not Turning Off/Switching Off

If your Samsun air conditioner won’t turn off, the evaporator coil is dirty, the thermostat has short-circuited, or the control board has malfunctioned. A dirty evaporator coil is more common and should be resolved by cleaning. 

Dirty Condenser Coils 

Dirty condenser coils do not allow the refrigerant to run through the coils as it should, and the heat from the cooling process is not dissipated. 

This will cause your Samsung AC to run non-stop to meet the temperature requirements, which is why your Samsung AC will not be switching off.

Read how to diagnose and fix dirty condenser coils in the section on “Samsung Air Conditioner Not Blowing Cold Air.”

A Short-circuited Thermostat

The thermostat is the part of your AC that controls the temperature and sends signals to the compressor and fan to start running when the temperature in the room is above the set temperature. 

If the thermostat of your Samsung AC short-circuits, it might cause your AC to run continuously by sending voltage nonstop to the fan and compressor. 

How to Diagnose a Short-circuited Thermostat

Use a multimeter to test continuity in your Samsung AC thermostat. If your thermostat shows continuity nonstop, it has short-circuited.

How to Fix a Short-circuited Thermostat

You’ll need to replace a thermostat that sends voltage to your AC continuously due to a short circuit. Consult a trained HVAC to do the job.

Faulty Control Board

The function of an AC control board is to send power to all the parts of your AC. If the control board is faulty, it will either fail to send power or continuously send power to the AC without following the usual AC cycles, causing it to run nonstop. 

How to Diagnose a Faulty Samsung AC Control Board

If your AC is tested for all other issues that could cause it to run nonstop and none of them seems to be the cause, then a faulty control board could be the culprit.

How to Fix a Faulty Samsung AC Control Board 

To fix a faulty control board, you’ll need the help of an HVAC professional.

Samsung Air Conditioner Turns Itself Off

A Samsung air conditioner that turns itself off is running with On/Off timer settings, has thermostat issues, has low refrigerant levels, or is short cycling. On/Off timer settings are more likely to cause your Samsung AC to turn itself off. But, this can quickly be fixed by changing the settings.

On & Off Timer Settings

Especially if you are using a new cooling unit, your AC could be running with timer settings without your knowledge, which means it will go off automatically when the Off timer is active.

How to Set/Remove Timer Settings on Samsung AC

The Samsung AC remote control shows three options (On, Off, and Good sleep) on the Timer Option Indicator which you can choose by pressing the Timer button.

Your Samsung AC timer can be set for a time between 30 minutes and 2 hours. To cancel a timing, set the time interval to 0.0.

Because setting a Samsung AC timer can be confusing, there are a few things you should know about combining On and Off timers. Knowing these things will prevent your Samsung AC from shutting itself off when you don’t want it to:

  1. When the On timer is shorter than the Off timer, the air conditioner will turn On and then Off automatically.

For example, if the On timer is timed at 3 hours and the Off timer at 5 hours, your Samsung AC will turn on 3 hours from the time you set it, stay on for 2 hours, and then turn off automatically. 

Note that this setup is done when the AC is off. 

  1. When the On timer is longer than the Off timer, the air conditioner will turn Off and then On automatically

For example, if the On timer is timed at 3 hours and the Off timer at 1 hour, your Samsung AC will turn off after 1 hour from the time you set it and then turn on after 2 hours. 

Note that this setup is done when the conditioner is running.

Thermostat Issues

There are three thermostat issues that can cause your Samsung AC to turn itself off:

  1. High Thermostat Setting

Your thermostat follows the current settings to run or stop the AC. If your thermostat is just a degree below the room temperature, it will not need to run much to achieve that set temperature.

Besides, room temperature may fluctuate consistently from a degree higher or a degree lower. So, if your room temperature stays at the temperature you set (a degree lower than what was the room temperature), it may shut off and stay off for a long while.

  1. Faulty Thermostat 

Whether it is the electrical wiring that’s damaged or the thermostat has shorted, a faulty thermostat will not perform its function of signaling the compressor and the fan to run properly. This could mean your Samsung AC switches off and stays so, not turning on when it should.

  1. Bad Thermostat Location

Your Samsung AC thermostat is temperature-sensitive and detects current temperature levels to signal your AC to run or stay off. 

If your Samsung AC thermostat is near the cold air vent or a shady part of the house that doesn’t warm up like the rest of the room, it could be reading faulty temperature values and keeping the AC off when it should be running. 

How to Fix Samsung AC Thermostat Issues

Depending on which of the 3 issues is affecting your Samsung AC, perform one of the following troubleshooting tasks:

  1. If you have a high thermostat setting that too close to the room temperature try lowering the temperature setting a bit more and see if your AC stays on longer. 
  2. If your Samsung AC has power issues, have a trained HVAC expert check it for continuity and replace it if it’s faulty.
  3. Relocate your Samsung AC thermostat to a more central position if you discover that it’s in a cooler corner of the house than the rest of the space.

Low Refrigerant Levels

The refrigerant absorbs heat to facilitate the cooling process. If your Samsung AC is low on refrigerant owing to a leak, the pressure in the compressor is tampered with. As a result, a safety switch could be triggered to shut it down until the refrigerant levels are normal. 

How to Diagnose Low Refrigerant Levels in your Samsung AC

As said earlier, diagnosing low refrigerant charge is the job of a trained HVAC expert. That said, however, you may notice some of these signs if your AC is low on refrigerant:

  • A rattling sound from the compressor.
  • Frozen evaporator coils.
  • No cool air being blown.
  • Longer cooling cycles.
  • Higher energy bills.

How to Fix Low Refrigerant Levels in your Samsung AC

Call an HVAC repair service to attend to any refrigerant-related issues.

A Short-cycling AC

AC’s turn on and off continuously in cycles of 10-15 minutes. If your Samsung AC turns off and on in shorter cycles than this, it is short cycling

A short cycling Samsung AC will not keep your home at the required comfort temperatures. Besides, the AC will also wear faster and may stop working altogether. 

Short cycling in your AC can be caused by one of these issues: 

  • A wrong-sized AC: The AC size (in BTUs) is smaller than what is required for the space being cooled, causing your AC to work harder than it should to achieve the set temperature or, the AC is too big for the room causing it to shut itself off because the room cools fast but with poor cool air distribution.

See how to tell if your Samsung Air Conditioner is wrong-sized from the “Samsung Air Conditioner not Heating” section.

  • Bad thermostat location: The thermostat is installed in a place with direct sunlight or other heat sources and does not detect the actual room temperature, thereby turning on in shorter cycles.

How to Fix a Short-cycling Samsung AC

Depending on the cause:

  • Replace a wrong-sized AC with the right size for the space being cooled to reduce power bills from the continuous AC running.
  • Relocate the AC thermostat to a position without direct sunlight or other sources of heat to prevent it from making wrong temperature readings.

Samsung Air Conditioner Keeps Beeping

If your Samsung air conditioner keeps beeping continuously, it has a technical issue or a command button is pressed continuously. A wrongly pressed command button is a more common cause that’s easily fixed by releasing the button.

Command Button Pressed down Continuously

If a command button on the remote control is accidentally pressed down continuously or is stuck in a command position, your Samsung AC will keep beeping nonstop. 

This happens because, by default, every time a command button is pressed, your AC beeps once. A button pressed down is like many commands one after the other.

How to Fix a Command Button Pressed down Continuously

Simply release the command button that’s pressed down continuously on the remote button. The beeping sound should stop.

AC Technical Issue 

If no command button is pressed down continuously, the nonstop beeping sound may be due to a technical issue.

How to Fix AC Continuous Beeping due to a Technical Issue

Reset the AC by pressing the increase (+) and decrease (-) buttons simultaneously for 3 seconds. 

If this does not resolve the issue, send an online service request by following these steps:

  1. On the Samsung website, tap/place the cursor on the Support option at the top right.
  2. Under Support, choose Repair Service and then Your Service.
  3. Choose Request Support and make your online service request.

Samsung Air Conditioner Leaking Water

If your Samsung air conditioner is leaking water, it has a frozen evaporator coil or the drain hose has issues. Ice on the evaporator coil is a more common cause for a Samsung AC leaking water. Defrost the coils to resolve the issue.

Ice on Evaporator Coil (Cooling Coil)

Poor airflow is the major cause of a frozen evaporator coil. Poor airflow into your Samsung AC can be caused by either of these issues:

  • A dirty air filter.
  • Disconnected or wrong-sized ductwork.
  • Improperly metered refrigerant (too little being released).
  • A dirty or malfunctioned blower fan.
  • A dirty evaporator coil.

How to Detect Ice on Evaporator Coil

An AC with a frozen evaporator coil will show these signs:

  • A high amount of water leaking from your AC, which is the first sign that there’s ice and the melting is causing a high amount of moisture than the usual that’s produced from the cooling process. 
  • The outer casing of the AC may appear sweated.
  • The coils will reveal ice build-up once you open the outer casing and remove the filter.

How to Fix a Samsung AC Frozen Evaporator Coil

To fix a Samsung AC with a Frozen Evaporator coil, follow these 3 steps:

Step one: Get rid of the Ice

Get rid of the ice by doing the following:

  1. Turn your Samsung AC to the Fan mode and the fan speed to High.
  2. Wait for around 15 minutes for the ice to thaw.
  3. Run the Fan mode until the coils are dry.

Step two: Set the unit to Cool Mode

Once the coils are dry:

  1. Set your Samsung AC to Cool mode.
  2. Set the thermostat a few degrees lower than the room temperature.
  3. Allow the compressor to run until it cycles off (once the set temperature is obtained).

Step three: Reduce AC temperature gradually

Once your Samsung AC cycles off, any remnant ice will melt. Gradually reduce the temperature settings a degree at a time so the AC cycles on and off until you can set it at your desired temperature.

Drain Hose Issues

Several drain hose issues can cause your Samsung AC indoor unit to leak:

  • The drain hose is wrongly installed and slants upwards.
  • The drain hose is bent, creating a reverse flow.
  • The drain hose’s extreme end is submerged in water, causing a reverse flow. 
  • The drain hose has a crack/hole.
  • The drain hose is clogged with dirt.

How to Fix Samsung AC Drain Hose Issues

The primary way to prevent AC drain hose issues is to make proper installation by ensuring the following: 

  1. The drain hose is not slanting upward.
  2. The drain hose is straight with no bends at any point.
  3. The drain hose’s extreme end is not sitting in a pool of water.
  4. There’s a 2ʺ clearance between the end of the drain hose and the ground.
  5. The drain hose water path is always clean and clear of dust and pebbles.
  6. Any cracks/holes on the drain hose are closed with insulation tape or the damaged hose replaced.

Samsung Air Conditioner Blinking Lights/Flashing Green Lights

If your Samsung Air Conditioner is blinking or has flashing green lights, it is usually accompanied by an error code that calls for corresponding AC service. If not, the blinking lights or flashing green lights may indicate a product defect or an EEPROM error.

We’ll tell you about the different Samsung AC error codes in the next section.

AS for the EEPROM error, it means that the main chip in the outdoor or indoor PCB (Printed Circuit Board) is not receiving feedback from the EEPROM chip (Electrically Erasable Programmable Read-Only Memory. This memory stores the code for the AC to operate.

What to Do if Your Samsung AC has Blinking Lights/Flashing Green Lights

There are a few things you can do if your Samsung AC is blinking or has flashing green lights:

  1. Check first any accompanying error codes and find out what it means in your Samsung AC User’s Manual or Service Manual and follow the instructions on what you should do. Usually, you’ll be directed to contact the nearest Samsung Service Center.
  2. Press the Power button to switch off the AC or remove the power plug. This will reset the AC.
  3. If the issue is not resolved by resetting the AC, call an authorized repair person for professional service.

Samsung Air Conditioner Error Codes/Fault Codes

Error/fault codes in air conditioners fall under the professional area that’s left for trained HVAC experts. This is why the Samsung AC error code meanings and solutions are usually indicated and explained in the Samsung AC Service Manual.

Even though we give brief explanations to Samsung AC error codes here, we advise you to seek the services of a trained HVAC since, as you will notice, most of the solutions need expert knowledge. 

Samsung Air Conditioner Error Codes E320

The error code E320 on your Samsung air conditioner is an outdoor sensor error.

What to Do if Your Samsung Air Conditioner has Error Code E201

Call the service technician to:

  • Check if the connection of the temperature sensor is faulty.
  • Check if the resistance value of the temperature sensor is normal. 

Samsung Air Conditioner Error Code E201

The error code E201 on your Samsung air conditioner is a communication error between the outdoor and indoor units during tracking.

What to Do if Your Samsung Air Conditioner has Error Code E201

Call the service technician to:

  • Check the communication from the indoor unit to the outdoor unit for faults.
  • Check if the indoor unit address setup for the PCB has overlapped. 
  • Replace the address for the communication line for the outdoor and indoor unit if there is any problem with the address.

Samsung Air Conditioner Error Code E153

The error code E153 on your Samsung air conditioner is an indoor unit floating error. This means that the floating sensor of the indoor unit is open for more than a minute, which increases the amount of water in the drain pan due to failure of the drain pump or the float sensor.

What to Do if Your Samsung Air Conditioner has Error Code E153

Call the service technician to:

  • Remove the floating sensor connected to the indoor PCB unit and test it for a complete power path.
  • Check the level of water in the drain pan.
  • Check if the drain pump works when the compressor is running and if the level of water in the pan decreases.
  • Replace faulty drain pump and/or indoor PCB unit.

Samsung Air Conditioner Error Codes E604

The error code E604 on your Samsung AC is a communication tracking error.

What to Do if Your Samsung Air Conditioner has Error Code E604

Call the service technician to:

  • Check if there is a response from the PCB control kit.
  • Check the communication cable of the outdoor unit.
  • Reset the communication cable and replace the communication PBA and the PCB outdoor unit if the problem is not resolved.

Samsung Air Conditioner Error Code E416

The error code E416 on your Samsung AC indicates that the compressor is down due to a discharge temperature sensor of the compressor.

What to Do if Samsung Air Conditioner has Error Code E416

Call the service technician to: 

  • Check if the compressor’s discharge sensor resistance is normal.
  • Check that the service valves are open.
  • Check if the values of the manifold gauge and the S-net correspond.
  • Check if both the outdoor and indoor EEV operate well.
  • Check for any clog in the piping.
  • Check if refrigerant levels are normal.

Samsung Air Conditioner Error Code E422

The error code E422 on your Samsung air conditioner is a refrigerant flow blocking error

What to Do if Samsung Air Conditioner has Error Code E422

Call the service technician to: 

  • Check the stop valve to see if it’s open.
  • Check for any blockage in the refrigerant pipe.
  • Asses the coils for possible refrigerant leaks.

Samsung Air Conditioner Error Code E464

Error code E464 on your Samsung AC is an Intelligent Power Modules (IPM) over current error.

What to Do if Samsung Air Conditioner has Error Code E464

Call the service technician to: 

  • Check the power and reset AC by restarting it.
  • Check the outdoor unit for any disconnected wires and general environment.
  • Do a thorough check on the indoor unit.
  • Ensure the service valve is open.
  • Assess the assembly status of the compressor and compressor wires.

Samsung Air Conditioner Error Code E470

The error code E470 on your Samsung AC is an EEPROM read/write error. It occurs when the EEPROM data in the set is lost or missing.

What to Do if Samsung Air Conditioner has Error Code E470

Call the service technician to load the EEPROM data by check the model name and inserting the EEPROM for your model.

Samsung Air Conditioner Error Code E475/E458

The error codes E475 and E458 on your Samsung AC are outdoor unit fan errors.

What to Do if Samsung Air Conditioner has Error Code E475/E458

Call the service technician to:

  • Check the power connection of the outdoor unit.
  • Check the connections on the fan connectors.
  • Examine the voltage of the fan motor.
  • Check each part of the fan motor for faults.

Samsung Air Conditioner Error Code E461

Error code E461 on your Samsung AC is a compressor starting/rotation error.

What to Do if Samsung Air Conditioner has Error Code E461

Call the service technician to:

  • Check for power issues and restart AC after a power reset.
  • Assess the compressor and compressor wire assembly for faults.

Samsung Air Conditioner Error Code E463

The error code E463 on your Samsung air conditioner shows that the compressor is down due to OLP temperature control.

What to Do if Samsung Air Conditioner has Error Code E463

Call the service technician to:

  • See if the resistant valve on the OLP center is normal.
  • See if the service valves are open (they should be open).
  • Test if the service valves correspond.
  • Check if there are any clogs in the piping.
  • Check if refrigerant levels are right.

Samsung Air Conditioner Error Code E554

The error code E554 on your Samsung AC is a gas leak error.

What to Do if Samsung Air Conditioner has Error Code E554

Call the service technician to:

  • Check for input power issues and reset AC.
  • Assess compressor and compressor wires.
  • Check outdoor unit for any issues: if inverter PBA wires are disconnected and if communication cable and pipes are properly installed.

Note that Samsung error codes will vary depending on your model. You may also see error codes not included here on your cooling unit such as the Samsung AC error code E4 or the Samsung AC error code A255 which are strictly service codes.

Always contact Samsung AC Support for any error codes showing on your Samsung AC.


  • Steve Rajeckas

    Steve Rajeckas is an HVAC hobbyist with an avid interest in learning innovative ways to keep rooms, buildings, and everything else at the optimal temperature. When he's not working on new posts for Temperature Master, he can be found reading books or exploring the outdoors.

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