Why Is My AC Running but Not Cooling?

The hottest season of the year is fast approaching, and all you will need is a cooling environment that will take the hot feelings away. But that is not happening anymore because of the one main reason; your air conditioning system is not cooling. Now, you have to deal with sleepless nights with sweaty and sticky feelings as you crawl into your bed.

But why? Why is my air conditioner running but not cooling? – This is probably the first question that comes into your mind. Everything is supposed to be running as it should, but unfortunately, you are not getting the ‘cool’ feeling like everyone else during the summer. And yes, it is natural to be worked up about this – who wouldn’t, right?

Brace yourselves and worry no more because we might have the answers you are looking for the big ‘WHY?’. There are numerous reasons why your air conditioning unit is not cooling. So, stay tuned to this article which comprises all that and what you should do about it.

My air conditioning system is running but not cooling, here is why:

1. The air conditioning system's air filter is dirty.

One of the main reasons your air conditioner is not cooling is because your air filter is dirty. The air filter prevents all kinds of dirt, dust, and particles that will go through the unit – and these particles go inside the air conditioning system’s cleaner.

This whole process makes up for a clean supply of air you are getting inside your home. It also helps in keeping the system at its optimum capacity.

However, all of this won’t happen if the air filter in your air conditioning system is accumulating too many dirt particles to work efficiently. Thus, instead of bringing comfort all day long, a dirty and clogged air filter will only block the airflow, reducing its home cooling capacity.

The thermostat then will continue reading the usual set of temperatures, but you will not receive enough air to cool your home during the hot days.

If this situation continues, extreme cases may occur. The dirty and clogged air filter will freeze the evaporator coil that blocks the passage for cool air. If neglected, your air conditioning unit might go out.

A dirty air filter is not the end of your comfortability – because you can handle this even all by yourself! As we always said, a good rule of thumb says that change your air filter at least every ninety days. So, make it a habit to check and replace your air filter before any troubles occur.

2. Issues in the Refrigerant

The air conditioning system’s work is a delicate process – this includes its cooling capacity. For it to work correctly, the refrigerant chemical used in the system should be in the right amount and must be in place. However, most of the time, this is not the case, for it is bound to fail you one or two times, causing your air conditioner not to cool as it should.

A refrigerant leak is one of the problems to look at, either through the outdoor coil or indoor system. When this happens, it might be the problem causing your air conditioning unit not to work effectively and efficiently. And the issue may continue to be a bigger problem, generating a permanent system failure.

Unlike changing and replacing a dirty air filter, this problem is not for the ‘do-it-yourself’ type of situation. A refrigerant leak is the job of the professional. It is best to contact your air conditioner repair professionals to check the root of the problem to handle the delicate work and make the proper diagnostics.

3. The outdoor unit is dirty.

If your air conditioning system’s condenser is dirty or covered with different debris, it will not function correctly in getting rid of the heat. If you want your air conditioner to operate at its optimum capacity, remove any debris surrounding the system, and try gently cleaning the condenser fins with a vacuum with a soft brush attachment. Always remember to care not to bend the fins.

Nevertheless, cleaning the air conditioner’s outside unit is just one of the many tasks needed to maintain its energy efficiency and optimum capacity. If your air conditioning system’s condenser is dirty or covered with different debris, it will not function correctly in getting rid of the heat. If you want your air conditioner to operate at its optimum capacity, remove any debris surrounding the system, and try gently cleaning the condenser fins with a vacuum with a soft brush attachment. Always remember to care not to bend the fins.

Nevertheless, cleaning the air conditioner’s outside unit is just one of the many tasks needed to maintain its energy efficiency and optimum capacity.

4. The thermostat setting is incorrect.

First and foremost, have you gone to check your thermostat setting? – This is the first task you need to check if your air conditioning system is running but not cooling.

If your thermostat is in its ‘on’ mode, then you will notice that the air conditioning unit will blow lukewarm air while turning on and off. When it’s on and not on ‘auto’ mode, it will run all day, even when the temperature is not too hot.

It will only take minutes to solve this problem. And what you are going to do is just set the air conditioning system’s thermostat to auto. However, if this still doesn’t work, try to check if the thermostat is set to cool – and then see whether the temperature setting is correct as per usual.

Call for an Air Conditioner Repair:

Cooling issues when it comes to your air conditioning system are stressful and worrisome – and yes, we know how hard it is, especially during the long night of hot summer days. Above are the troubleshooting tips which you can do at home to solve your problems without calling for an air conditioner repair.

However, if problems persist, you must consider working with an HVAC professional to help you find a solution for your cooling issues and to avoid further damage to the system.

The AC Therapist is always ready at your service – equipped with the best solution to your HVAC problems. Give us a call, and we will be there right at your doorstep. Air conditioner repair first and air conditioner replacement second.