Air Conditioner Not Cooling?

Air conditioner not cooling? Here are five things to check prior to calling the professional.

People buy air conditioners for one main reason: to keep their home cool. After a stressful day at work, a cool blast of air is all you need. Cool air has a calming effect, and it helps people sleep better. In summer, many people would rather spend their time in their room watching Netflix than going out and basking in the sun’s heat.

But what if your air conditioning unit suddenly stops blowing cold air on a rough summer day? You might suffer from not getting that calming effect anymore. There are many reasons why your air conditioner might stop blowing cold air.

It could be because of a power outage, a frozen evaporator coil, or a clogged filter. If you suspect that your air conditioner is not working correctly, you should first check the power. Next, ensure the unit is plugged in and the circuit breaker is not tripped.


1 – You have clogged air filters.

A clogged filter is another possible reason why your air conditioner has stopped blowing cold air. The filter helps to remove impurities from the air, but if it becomes clogged, it can restrict airflow and cause the air conditioner to stop working properly. To clean a clogged filter, remove it and wash it with soap and water.

Your air conditioner doesn’t just blow cold air. It also filters the air around the room. A clogged air filter is one potential cause of the unit no longer blowing cold air. The filter might be too dusty and need a cleanup.

2 – The condenser coils and evaporator are dirty.

If the power is on and the air conditioner isn’t working, it’s time to check the evaporator coil. The evaporator coil is responsible for absorbing heat from the air in your home. If this coil freezes, it can no longer do its job correctly, and your air conditioner will stop blowing cold air. To thaw a frozen evaporator coil, turn off the air conditioner and let it sit for a few hours.

The condenser is responsible for releasing or collecting heat, while the evaporator is responsible for blowing cold air. A dirty evaporator or condenser coils can be a contributing cause to why an air conditioning unit does not blow cold air. Having it cleaned once in a while maintains its overall performance.

3 – The compressor’s broken

With a malfunctioning compressor, refrigerant might not be able to circulate in and out of the unit. The best option, in this case, is to buy a replacement compressor. Unfortunately, fixing a broken compressor can cost you hundreds of dollars.

4 – Your thermostat is no longer cooperative.

Whether you turn it to absolute zero or a sensible 74, it will not make much difference if your thermostat is not working. Check the thermostat from time to time to ensure it is working correctly.

5 – Refrigerant is leaking.

The refrigerant is responsible for cooling your air. It absorbs heat in exchange for cool air. Leaky refrigerant is one problem that air conditioner owners face. Calling an expert is the best option to resolve this issue.


One troubleshooting tip is to keep your air filter, compressor, and evaporator clean. If these components of the air conditioning unit are dirty or clogged, it will not only prevent your unit from blowing cool air; it can also damage the entire unit. When you purchased the unit, you were briefed by the salesperson or perhaps the person doing the installation where these components are. Cleaning them can help you save money.

There are some problems that you can’t resolve yourself. Troubleshooting will not help in these cases. Only experts in refrigeration and air conditioning can take care of it. This may be costly, but letting them handle it reduces the possibility of inflicting more damage to your unit. Sometimes it is best to let the experts handle things.



ECM Air Conditioning, with its headquarters located in Boynton Beach, FL, provides air conditioning services within Palm Beach County, Broward County, Martin County, and St. Lucie County. If you’re looking to have a new HVAC system installed, we’re on-call and ready to assist you. So if you’re in need of an HVAC installation, don’t hesitate to contact us today to schedule an inspection! Our HVAC installation experts will check your ductwork, measure, check wire sizes, and more before making recommendations to ensure maximum efficiency and comfort. Call us at 561-295-1763 or contact our HVAC installation team online by clicking here.


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