How To Fix Common Air Conditioner Problems in 2024 – Keep Your Home Cool

air conditioner problems and solutions 1

Did you think to make sure your AC unit is running perfectly before you head into the sultry part of the summer? In hot countries, it has become a part and parcel and you can’t spend a single moment without it. You know well that if your air conditioner goes out life becomes pretty unbearable.

So, it’s important to make sure that your AC is running well. Besides, it’s essential for you to know the common air conditioner problems and solutions.

Your air conditioner may suddenly stop working for any simple issues. If you don’t fix the problem you must require a professional technician to repair the issue. But, for simple issues, we see that sometimes a householder can find simple problems with problem-solving.

We will discuss the following problems and a problem-solving guide to help you address some of the most common air conditioner problems and solutions you may face with your air conditioner in this article.

Keep in mind that you may face many common problems with air conditioners that can happen due to a lack of maintenance. So, you have to keep your air conditioner with proper maintenance.

The good news for you is the fact that we have already prepared an infographic that should solve a lot of problems. Our designers wanted to make sure that you get a visual image that will cater to the 3 common air conditioner problems and solutions. So here, you go.

Enjoy the visuals.

Air Condition infografic2

What Are the Causes of Air Conditioner Problems?

There are many causes of air conditioner problems. Among them, we will know some remarkable causes of air conditioner problems. Here are given below in detail.

8 most common Air Conditioner Problems and Solutions

So the image is self-explaining and it has a lot of information for you. However, we are going to break down everything for you.

1. Air Conditioner Low Refrigerant Problem

Air Conditioner Low Refrigerant Problem

You can’t think of your air conditioner without a refrigerant system. That means the refrigerant system is a part and parcel of air conditioning operation. An air conditioner can’t perform heat exchange without a refrigerant system. The refrigerant system of air conditioners shifts heat from one location (indoors) to another (outdoors).

So, now you understand that a small loss of refrigerant can cause your air conditioner many problems. Generally, at the time of air conditioner refrigerant loss, you decide to call in a professional repair right then. But no matter! We will learn about how to solve this problem at home with the help of websites like where you can find user manuals and instructions for every air conditioner model.

The Problems You May Face by Low Refrigerant

Less Cooling Performance

Do you feel less cooling performance in your home in the past few days? Or, are you running your air conditioner all day long to keep cool in your home? If both answers are yes then your air conditioner’s refrigerant level is low.

If the refrigerant charge system is sufficient then it will operate well. But, when the refrigerant level falls down, your unit’s ability to cool your home will also drop as well. Here Causes of Reduced Cooling Capacity in Your Air Conditioner.

May freeze on the Evaporator Coil

Because of the low refrigerant level, your air conditioner’s evaporator coil may be frosted. A low refrigerant problem of your AC can make it difficult for the evaporator coil to take enough heat to heat the cold refrigerant.

When the refrigerant of your AC remains cool wetness can increase and cause frost around your coil. The low refrigerant level of your AC not only reduces your AC’s cooling performance but also raises your energy costs owing to continuous operation.

So, the low refrigerant problem can affect your AC’s evaporator coil greatly

air conditioner’s may freeze

Maybe to Impair the Compressor Motor

The low refrigerant problem may cause serious damage to your AC’s compressor motor. If you use your air conditioner unit for a longer period under this low refrigerant problem can result in overheating or burning out your AC’s compressor motor.

It’s also very expensive to replace the damaged compressor motor. So, now you can understand what a great impact on your comfort a low refrigerant air conditioner problem may affect.

What’s the solution to the low refrigerant problem?

First, shut off the system when you face any indication of any of these problems. The low refrigerant problem can happen due to being undercharged or having a leak.

So, you have to check leaks then charge the system with the correct amount of refrigerant.

If the low refrigerant problem is caused by being overcharged, you may need to replace the entire charging system.

2. Frozen AC Coils Problem

Frozen AC Coils Problem

You may face any AC problem but the first symptom you are likely to observe is the heat.  Do you feel that your AC isn’t performing as it should? In this case, you may inspect a few things.

You have to check the air flowing through the supply registers.

If the air flowing is warm or stopped altogether, then your AC’s frozen coil could be the problem.

Causes of Frozen AC Coils Problem

There are many causes of frozen AC coil problems. Among them, remarkable are given below.

Dirty Air Filters

First of all, clear airflow is mandatory in order to function your AC properly. Filthy filters of your AC prevent the air from flowing smoothly.

If the air can’t flow perfectly, then the coils may get too cold. Consequently, your frozen AC coils turn into ice. To avoid this filthy filter problem you may choose the best ac filter for your home.

Broken Fans

You know that in spite of having clean filters your AC may lead to frozen AC coil problems because of broken fans.

If your AC has a broken motor or dirty blades then it will cause frozen coils.

Blocked Condensate Lines

To drain away excess moisture from humidity is the main duty of Condensate Lines. So, if the Condensate lines are blocked for any issues your AC Coils may freeze.

The excess moisture of your AC coils condensed into water circulating through pipes to a ground drain. If the water is stuck for a clogged pipe in one place your AC coils may freeze.

Generally, it happens near the evaporating coils. Consequently, the coils freeze.

Thermostats Problem

Your thermostat controls the temperature of your AC. So, if the thermostat senses the wrong for any issues and continues its working process then it may cause frozen AC coils.

Refrigerant Leaks

The refrigerant changes pressure and temperature so as to absorb heat. If it leaks, the shortage of pressure can create it and absorb a lot of heat than it ought to.

This makes the refrigerant leak, and so the coils freeze over.

What’s the solution to the frozen AC coil problem?

While you are facing a frozen AC coil problem it can be solved in a limited way by you. But in most cases, you need a qualified HVAC service to repair the problems. Besides, for solving your problem at home we are giving some instructions. Please follow step by step.

  • In the first step, turn off the thermostat for reducing further damage. Turn the fan switch to  “fan-only” for blowing air over the coils. You should be ready with containers to contain the dripping water and restrain water damage as the ice may melt in case of ice accumulation on the coil may extend beyond the dimensions of the condensate drip pan may also beneath the air handler.
  • In the second step, You have to check the air filter as low system airflow is one of the causes of coil icing. Even a clogged filter can be a great cause to reduce airflow. The refrigerant circulating through the coil can’t eliminate sufficient heat while the system airflow drops below the standard. You know that refrigerant temperature falls down into the range below 32 degrees and the coil continues to condense water as well. Consequently, the ice started to freeze on the coil surfaces.
  • You have to install a new filter if the filter seems extremely dirty or clogged. Then, wait for the ice to it melts off the coil. Finally, restart the system and if you find the problem again then try to get professional help.

3. Dirty Condenser Coils Problems

Dirty Condenser Coils Problems

The condenser coils are the most important materials for your AC.

They are black and found usually at the back of the refrigerator.

In some models, they are also found on the top or at the bottom of the AC unit.

The condenser coils are very important for the cooling process because they make the highly pressurized and heated refrigerants cool. So, it’s easily understood that if the condenser coils are dirty, the heat appliance can’t cool off properly.

The Problems You May Face by Dirty Condenser Coils Problems

The main problem you may face caused by dirty condenser coils is that the compressor doesn’t work efficiently. Consequently, the appliances can’t cool off properly. As the compressor heats up the refrigerant it also needs to cool down as well. But, the dirt of condenser coils restrains dissipating the heat. As a result, the condenser coils can’t lose heat easily.

Another problem is that the compressor begins to eat up a lot of energy and so increases the electric bills. Basically,  Dirty condenser coils are the cause of overheating the compressor, and overheating of the compressor causes it to stop working. As a result,  the entire refrigeration begins to stop it’s processed as well.

What’s the solution to dirty condenser coils problems?

The solution is very easy. You have to just clean the dust and grime of the condenser coils with a vacuum cleaner and a duster. The duster’s task is to remove the dust from the coils and the vacuum cleaner’s task is to remove grime that is sticking to the condenser coils.

The duster can easily remove the dust from the coils but it’s impossible for it to remove grime that is sticking to the condenser coils. So, to remove grime you have to use a vacuum cleaner.

4.  Defrosting Problems

Defrosting Problems

Your air conditioner might be malfunctioning because it can’t find the coldest spot in your home, or it might not be able to circulate air properly.

One common symptom of this problem is that your air conditioner starts to work harder and harder to cool the room, and then it suddenly stops working. This is because your AC unit isn’t able to find a cold spot, so it starts blowing cold air all over the house.

The solution to this problem is easy. Just make sure your AC unit can find a cold spot in your home by checking for drafty areas and fixing any leaks in the building’s insulation.

5. Evaporator Fan Not Working Properly

If the evaporator fan isn’t working properly, your AC unit will be working harder than necessary to cool the room. This could lead to problems like low air pressure, overheating, and even a fire.

The first step in solving this problem is to check the fan for proper operation. If it’s not working, you’ll need to replace it.

6. Problems with the Air Conditioner’s Compressor

Problems with the Air Conditioner's Compressor

If the air conditioner’s compressor is malfunctioning, your AC unit will struggle to produce cool air. This could lead to problems like high air pressure and reduced efficiency.

The first step in solving this problem is to check the compressor for proper operation. If it’s not working, you’ll need to replace it.

7. Damaged or Failing Air Conditioners

Air conditioners can last anywhere from 10 to 15 years before they need to be replaced, but if you notice any of the following signs that your AC unit isn’t functioning properly, it might be time to get a new one:

  • Low air pressure
  • Unable to cool the room properly
  • Frequent repairs or replacements

Besides, to avoid dirty condenser coils problems you can use the best air conditioner covers.

Here how to Solve Problems with Air Conditioning Units: How to repair at your home

8.  Improper Installation

If your AC unit was not installed properly, it could cause problems like high air pressure and reduced efficiency. To fix this issue, you’ll need to have the installation inspected by a professional.

If you notice any of these signs that your AC unit isn’t functioning correctly, it might be time to replace it.

Besides, you may need the best air conditioner support bracket to keep safe when you use the air conditioner.

 HVAC problems and solutions

Can be pesky, but if you know what to look for and how to fix them, your AC will keep you cool in the summer and warm in the winter. Here are  common HVAC problems and their solutions:

1. AC not cooling or heating as expected: This could be due to a variety of reasons, like a blocked air filter or low air flow. To troubleshoot this issue, start by checking the filters and airflow pathways. If necessary, replace any components that may be causing the problem.

2. High energy bills: A poorly-functioning AC unit can contribute to high energy bills by using more energy than necessary. To fix this issue, take measures like adjusting the thermostat settings or resetting the unit altogether.

3. Noisy AC: If your AC is making weird noises, it might be time to have it serviced or replaced. Check for clogged filters or other debris that may be blocking the unit’s fans or blades. can be frustrating, but don’t worry – we’ve got you covered. Here are the top three causes of air conditioner problems, and how to fix them:

4. Blocked Air Flow: This is the most common type of air conditioner problem, and it occurs when dirt, dust, or other objects get caught in the ducts and restrict airflow. To fix this issue, your technician may need to clean out the ducts using a vacuum cleaner or power brush.

5. Overheating: If your air conditioner is not properly cooling your home, it may overheat and start producing toxic fumes. To fix this problem, your technician may need to replace the thermostat or fan motor.

6. A Leaky HVAC System: Air conditioning systems can also become leaky if they’re not properly maintained. This can cause water damage to your home and increase your energy bills drastically. To prevent this from happening, schedule an annual HVAC maintenance checkup with a qualified technician.


1. Why is my AC running but not cooling?

One of the most common problems with air conditioners is that they don’t cool enough. This can be caused by many different things, such as a blocked or dirty air filter, clogged ducts, and structural problems with the unit itself. To check if the AC is actually cooling your home, try putting your hand near the vents and see if it feels cold.

2. How do you unclog an AC condenser?

AC condensers can become clogged with dust, hair, and other debris over time. The accumulated material will block the air flow and cause the AC to work harder to cool down your home. To unclog an AC condenser, you’ll need to clean the condensate drain with vinegar.

3. How do you check if the condenser is blocked?

To check if condenser is blocked, you need to turn off the power to AC unit and wait until the compressor stops working. When you turn on AC unit again and hear the compressor running, it means that the condenser is blocked.

4. How many years should an AC last?

That really depends on a lot of different factors. For example, how often do you use it, what type of air conditioner it is, and how well you take care of it. A good rule of thumb is to expect your AC to last between 10 and 15 years.

5. What is the fastest way to cool down a house?

The fastest way to cool down a house is by using an air conditioner. Air conditioners use refrigerants to lower the temperature of the air in the room. This will help you to avoid getting overheated and feeling sweaty.

6. How can I cool my house down without air conditioning?

Open your windows! Fresh air will help cool your home down. Make sure to close the windows when the weather starts to get hotter outside so that you don’t let in any mosquitoes or other bugs.


As air conditioning is inevitable for our day-to-day life it should be taken care of perfectly. Otherwise, you will face unbearable affliction with AC problems. If you plan on trying to repair your air conditioning yourself it may save you some money as well.

You may also avoid some AC problems by using the best smart plug for your air conditioner. We should take proper steps consciously to avoid AC problems that are caused by low maintenance.

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