What To Check If Air Conditioner Not Cooling Home Properly

Do you know what to do when your HVAC Unit Stops Cooling?

AC not cooling properly

If your air conditioner not cooling your house properly there are many things that could possibly be wrong.  Some of those things could simply be the thermostat is set improperly or the refrigerant level is low. These are just a few examples though.  

Today I will go over with you the biggest areas to check if your home or business AC can’t cool the right way as well as some tips on how to fix them.

To learn about the most common AC problems and tips on what you can do, please be sure to watch the following video:

The AC unit is no longer considered as a luxurious item in our households because of the continuous rise in temperature. Therefore, it becomes mandatory to install a central air conditioner in residential locations in order to properly cool your home.

The constant and prolonged use of our heating and cooling units ensures that we will need both heating and air conditioning repair services to keep our units working properly. This is true because of all mechanical equipment liable to wear and tear once in a year. 

Most of the time people are not comfortable undertaking the repairs for areas such as the evaporator coil, condenser coil, refrigerant leak, or even dirty air filters of their outdoor unit.  

Why you should hire professional technicians for HVAC repairs

Therefore, it is always wise to call a qualified professional for handling all of the HVAC services regarding cooling your house. While you call an air conditioner professional for ac repair, there are few things that should be practiced so that your unit stays in excellent condition.

One of the most used devices in your home is the air conditioning unit. It is extremely helpful during the summer when the heat seems unbearable. However, not all of us know how to care for our air conditioning units properly. 

This is one of the reasons why our utility bills rise and AC systems do not last long. Proper care for the air conditioning units will pay off. It will not only work efficiently but it will also make your device last longer. 

But you might as yourself question like:

  • How will I take care of your air conditioning unit? 
  • What are the things I need to keep in mind? 

Simply use the following Tips if your HVAC System is not working properly

What To Do When Your HVAC Unit Is Not Cooling 

1. Check Condenser Coils

Dirty vs clean condenser coils

Make sure that the condenser is in good working condition. The condenser is normally found outside the house. This is what keeps the liquid in the unit cool through its coils. If the coils are cool, the water in it will be cooler as well. 

In order for it to cool the coils, there should not be anything that will block the cold air from getting in the condenser. Remove leaves, branches and other things that may block the vents. Nothing should block it within one to two feet.

2. Clean All Internal Parts

It is important that the internal parts of the property are also clean. Before opening your air conditioning system, see to it that you check the manual, as there are different ways of cleaning such devices. 

Check the safety precaution first to avoid problems and accidents like electrocution. Turn off the device and see to it that you handle it properly. Remove the dirt such as cobwebs, dust, leaves and other debris that may have managed to enter the unit. Some are cleaned with a brush while there are those that need to be hosed down.

This will also help if you keep your air conditioning unit cool. If it is cool, it will not need to work harder. This means that energy is used efficiently. This makes it last longer as well. 

This is why it is ideal to have your unit in a shaded area. 

3. Protect Heating & Air Unit From Direct Heat

Tree or shrub protecting HVAC unit from direct heat

You may plant a tree or a shrub that can protect your unit from the direct heat of the sun without blocking its vent. You should also be consistent with the level of cooling of the device. 

Do not turn it on and off repeatedly. You can set it low and let it cool the room without changing it every time. It is also ideal to have your fan unit in auto rather than in an on mode.

4. Check Heating and Cooling Unit Regularly

Regularly check your air conditioning system too. Change your filter regularly. A clean filter is essential to ensure that you breathe clean air. Have it serviced and checked by professionals too. 

There are devices that come with regular monthly monitoring for one year. You can take advantage of this. This may also be covered in your home insurance, so see to it that the system is checked. If you want to make sure to stay comfortable especially during the warm season, see to it that you take care of your air conditioning unit.

5. Clean All Filters

A dirty or clogged filter is one of the top reasons for air conditioning failure. Cleaning air filters should be done at least once in a month or two. If the filter is in the poor condition it should be changed. Clogged filters can also cause lots of respiratory diseases. 

Generally, it has been seen that the air conditioner stops giving cool air simply because of a dirty filter. One can save money on AC repair by changing or cleaning filters frequently.

6. Check The Compressor

Checking the compressor

The compressor is one of the most important parts of an air conditioner. If the unit stops working, the compressor is the first part should be checked first. Check around the compressor for any sign of wear and tear. 

When a compressor fails you will hear an irregular noise because of the building of frost around the compressor. The compressor always needs some extra care in the relatively cold and high altitude area. Always oil the compressor in order to keep it effective. 

Lubricating the compressor regularly will help piston to move properly inside the cylinder. Whenever you find any of this problem or any leakage from the compressor, it is always better to call an air conditioning repair professionals otherwise it may cause more serious problems.

7. Checking Air Controller

The controller is one of the most handled units of the air conditioner. Sometimes it gets damaged due to mishandling this part. The air conditioner will not function properly if it is not set properly. Checking all the components of the controller then it is the best time to take help from the professionals.

8. Check The Freon Level

How to check freon pressure

Whenever you feel that the air conditioner is not providing proper cooling then the first thing you have to check is the level of Freon. Usually, you will find Freon in the set of small pipes. This small pipe plays an important role in changing the hot liquid into gas. 

When the freon level is low, this will fail to produce the cool air. Make sure when you top-up the freon, it should be as per the manufacturer’s guidelines which are given in manuals. It is always advisable to call the professional or some reputed company for refilling the freon which acts as a coolant in the system.


Now that you know all the best tips there are to follow if your AC unit is not cooling the right way or if your heat pump is not working correctly you do not have to panic the next time your encounter this problem.  

If you would like some more information regarding heating and cooling problems you may experience in the future as well as how to find the best HVAC contractors to fix them, be sure to read the following related articles.

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