Common Air Conditioner Problems & How to Fix Them

Now that it’s summer, many of us are ready to turn on the air conditioner. Even though air conditioners are a great way to keep cool, they can also cause problems. When there are problems with an air conditioner, it can be a pain to deal with everything from warm air to strange noises and smells. 

In this article, we’ll talk about how to fix some of the most common problems with your heating and cooling system. So, keep reading to find out how to make sure your air conditioner works well this summer.

Frozen Evaporator Coils

Ice on the evaporator coils is another problem that can happen with an air conditioner. This can make the air conditioner work less well or even make it stop working at all. The best way to fix an air conditioner with a frozen evaporator coil is to turn it off and let the coils warm up. 

You can also try to speed up the process by blowing warm air on the coils with a hair dryer. Once the coils are no longer frozen, you should be able to turn on your air conditioner without any more problems.   

Water pooling underneath the air conditioner   

There are a few things that could be causing water to pool under the air conditioner. First of all, you should make sure that your unit is level. The condensation that forms when cool air moves over warm coils is taken care of by the air conditioner’s drain system. If your system is tilted or not level, this drainage process won’t work as well, which could cause water to pool around your unit. 


To fix this problem:  

  1. i) Make sure that your air conditioner is on a level surface. 
  1. ii) Similar problems can be caused by leaking ductwork, so be sure to check yours.

Ice buildup on the air conditioner  

Most of the time, ice on an air conditioner is caused by a clogged drain.

You can use a vacuum cleaner to clear the drain yourself, or you can call a professional if that doesn’t work. 

Clean out any junk that may have built up in the condenser coil of your air conditioner 

Clean out any junk that may have built up in the condenser coil of your air conditioner (the part of your AC unit that cools and heats air). Most of the time, this is done by using a brush with a long handle and turning off the power to the unit before cleaning. Be careful! Move any sharp objects out of reach before you start this job.  

Use a vacuum attachment made for cleaning cooling coils to get rid of any extra dust that is inside the unit.   

Strange noises coming from the unit   

If your air conditioner is making strange sounds, it may be time for air conditioning repair. Before you do that, though, you should make sure that the fan and belt are in good condition. If either of them is broken or worn out, the unit may make strange noises and not work as well as it should. 

Also, look for cracks in the compressor or drain tube. If either has been damaged by noise or time, it could be causing your AC to not work right.   

Dirty Air Filters

If your air conditioner isn’t keeping your house cool, it could be because the air filter is dirty. Dust and other particles in the air get caught by air filters, which can easily get clogged if they aren’t changed often enough. When this happens, airflow is restricted and the air conditioner won’t be able to cool your home effectively. 

This is a simple problem to solve, which is good news. All you need to do is change the air filter when it gets dirty. Most air filters should be changed every three months, but this can change depending on the type of air filter you have. If you’re not sure when to change your air filter, check your owner’s manual or call a local HVAC technician.   

Faulty Thermostat: 

The thermostat is responsible for controlling the temperature of your air conditioner. If it’s not working right, it can make your unit work less well or not at all. To fix this issue, you’ll need to either replace the thermostat or have it professionally calibrated.   


In conclusion, air conditioners are an important part of homes and businesses in the 21st century. They can, however, run into some problems that are easy to fix if they know a few basic things. Low levels of refrigerant, a clogged filter, and a broken thermostat are all common problems. With the right troubleshooting methods, you can get your air conditioner up and running quickly and well.