Home AC Unit Not Cooling

Home AC Unit Not Cooling Properly? 3 Possible Reasons Why

With summer right around the corner, you may already be feeling the heat creeping up.

You know the temperatures will soon start to climb and that AC unit will be running most of the day.

The last thing you want to deal with is a problematic AC.

There are several reasons for your AC unit not cooling properly and keeping your home comfortable.

Now is the time to address any needed repairs or maintenance issues before things get too hot to handle.

Read on for the three main HVAC cooling problems.

Insufficient Maintenance

Unfortunately, many people take their AC system for granted. That is until it stops working properly.

Pre Season Check-Up

Any system needs regular inspection and maintenance to keep all parts working at top efficiency.

It is a good idea at the beginning of the summer season to have an experienced HVAC service technician come out for a thorough inspection.

They can catch minor issues before they turn into larger ones and make sure all parts of the system are working correctly.

Clogged Air Filters

As long as your AC is running, the filter is collecting dust, debris, and contaminants.

This is a very necessary dual-function as it protects both the HVAC system itself as well as improves the air quality in the home.

Because the filters get so much use, they can quickly become clogged.

This can cause a build-up of mildew and even dangerous mold.

In addition, if the cool air is not flowing freely back into the home, it will appear the AC is not working properly.

Fortunately, this is an easy fix.

The air filters need to be replaced.

Due to the heat and climate of AZ summers, a new filter should be put in at least every 60 to 90 days (max). If the unit runs most of the day, it could be as little a 30-60 days.

Dirty Condenser Coils

Another component that causes the AC not to get cold enough is dirty condenser coils.

Just like the air filter, dirt will build up on the coils.

Condenser coils are an integral part of cooling the refrigerant.

If they become clogged with debris they no longer function properly.

This results in the unit not producing enough cool air.

If you looking to save a little money, you might want to try to clean the condenser coils yourself.

Of course, you can also turn to your trained AZ HVAC specialist to help out as well.

Low Coolant

The coolant is the magic potion of your AC unit.

It flows through the evaporator coils and cools down the air that gets pushed out through the vents into your home.

Just like gas in your car, if the coolant gets too low, the unit will not run properly.

The result is a home that is not cool enough.

The only solution for this condition is to call your professional AC repair team to come to refill the coolant.

Faulty Equipment

As we have seen, sometimes when your AC is not cooling enough it is due to a maintenance issue.

Other times, it is simply the result of faulty equipment.

Worn Out Compressor

The heart of your HVAC system is the motor, which is also called the compressor.

It gets the coolant started and then moving through the system so it can cool your home.

If the compressor goes bad or wears out, the unit just will not work.

Defective Thermostat

Another important component in the entire process of cooling your home is the thermostat.

It is the sensor that registers when the temperature has reached the designated point for the unit to turn on.

If it is not working properly, it will not register the warmer temps in the house and will fail to trigger the AC to come on.

There are several other working parts within the unit that can go bad.

Your AC system works hard to keep you comfortable and sometimes parts just break down.

It is difficult for these types of problems to be diagnosed without a professional.

Don’t live in misery in the Arizona heat.

Contact your HVAC professional to find and fix the problem.

Wrong or Outdated Unit

A unit can run perfectly and still not provide enough cooling. Here is why that could happen.

The Wrong Size

Some people try to cut costs and don’t take the advice of the professionals.

They go with a smaller unit and think they can just turn down the thermostat to keep things cool enough.

That just isn’t the way it works.

If you do not have a unit or system powerful enough for the size of your room or home, it will not cool properly regardless of how much you run it. You need an upgrade.

An Outdated System

If you have been diligent with the maintenance and the system is running correctly, but your home is still not cool enough you may have to face another truth. Your unit may be outdated.

Machines eventually wear out over time.

Your unit may have served and cooled you well for years, but it may just be time for a new system.

While this may not be the news you want to hear, a new, more efficient system will save you money in utility bills over time.

Not to mention, you and your family will finally be able to relax and be comfortable in your cool home.

Don’t Settle for Your AC Not Cooling Enough

Summer’s heat is closely approaching.

With it comes the need for a properly working HVAC system. You should not have to worry about your AC not cooling enough.

There are several things that can cause a problem and sometimes it is just a matter of going down the list to check off all the boxes.

The bottom line is sometimes you simply need a professional to step in and diagnose and fix the problem. Don’t suffer needlessly.

Here at Mark Daniels, we are dedicated to providing you with the highest quality service and products. If you’re looking for an affordable, reliable air conditioning service in Chandler, Gilbert, Phoenix or beyond, your satisfaction is our priority. Reach out today to learn how we can assist you.


Is it time for an Air Conditioning Service? Contact your experienced, affordable, emergency HVAC experts at Mark Daniels Air Conditioning & Heating, Serving the Valley Since 1996. Call  (480) 571-7219 or request service online today!


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