Is your AC not blowing cold air? AC issues can be very stressful. There are many reasons why an Air Conditioner may stop blowing cold air. Some are easy to fix and some are not. Here are five of the most common reasons why your AC may not be blowing cold air:

1. Thermostat

Start by checking your thermostat and may sure it is set to the correct setting. This may seem obvious, but it is often overlooked.

2. A dirty filter

One common, and easily remedied causes are dirty or clogged filters. These filters work overtime trapping particles and dust in the air. If they are not changed regularly, they can easily become clogged.

When your filter is clogged, the air flow diminishes and your Air Conditioner may shut down. When filters aren’t changed often enough, parts wear out faster than they should. It can even affect the evaporator coil and condenser and create a much larger problem.

Your filter should be changed every one to three months. If you have indoor pets, you may need to change it more often.

3. A coolant leak

If your Air Conditioner is not blowing cold air, it may be low on coolant. This is more than likely caused by a leak.

If you suspect a refrigerant leak, you should contact an HVAC professional right away. Small leaks can be difficult to diagnose and fix properly.

4. A problem with the Evaporator Coil or Condenser

A clean filter will keep your coils working, however they can still wear out eventually.

What is an evaporator coil? There are two kinds of air conditioner coils every cooling system: the evaporator coil and the condenser coil. These coils basically distribute heat by moving gases and cooling the air with coolant. They need to stay clean to help transfer heat away. Coils can also freeze-up if the refrigerant is running low.

Issues with the coils will cause major disruption within the air conditioning unit and should be seen by an HVAC professional as soon as possible.

5. Ventilation issues

Just like air filters that are clogged and restrict airflow, a blocked or clogged vent can do the same thing.

The ventilation system runs throughout the house and if something creates a blockage or a leak in the ductwork, it will affect the cooling. A tear or hole in the ductwork could mean your cold air may be leaking out into your attic.

Sometimes the vent itself becomes blocked by furniture or even closed. The room with that vent may not be as cool as the rest of the house.

Proper maintenance will prevent your AC from not blowing cold air

Dirt and grime are the number one cause of Air Conditioning failures. Your air conditioner needs regular maintenance and cleaning. Filters need to be changed and all other working components should be examined by a professional.

We recommend having your system serviced twice a year to keep it working as it should. A trained technician can spot and correct issues before they become costly

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