Why Does My Air Conditioner Blow Hot Air?

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Why Does My Air Conditioner Blow Hot Air?

Nothing can be worse than staying at home this summer only to realize that your air conditioner is blowing warm air. So, you checked the unit for faulty wires or parts but did not see where the problem lies. If you are wondering why your A/C unit blows hot air instead of cool air, you may find out the answer below.

Here are possible reasons why an air conditioner blows warm air.

Clogged Air Filters and Evaporator Coils

Dirt buildup on air filters may result in clogged filters and evaporator coils. Clogging in these two A/C components can be dangerous as it blocks the passage of air, causing the air conditioner to blow warm air. When dust, dirt and other debris accumulates on air filters, the evaporator coils may freeze which can impede the airflow completely. To make the most of your air conditioning unit, always make sure that air filters are clean. Replace them as necessary.

Faulty Thermostat

One of the things you should check when your A/C unit is not working well is the thermostat. Check the batteries and the setting. Chances are the thermostat has been set to “heat” unintentionally and that is why you feel less comfortable indoors. Make sure the batteries are working and set it to “auto.” If the batteries and setting are good, then you may need professional help to troubleshoot the problem.

Low Refrigerant

Almost all types of air conditioners are equipped with refrigerant that comes in various kinds. Even the smallest leak in the refrigerant may leave you uncomfortable because of complete loss of cool air blowing from your A/C unit. An indication of a refrigerant leak is ice buildup inside and outside of the unit. If this is the issue, a recharge or replacement may be necessary.

Blocked Condenser Coils

You are done checking the indoor unit and some of its components. Now, it is time to check the outdoor unit. Just as the evaporator coils, your condenser coils also need regular cleaning to eliminate dirt, debris and other outdoor elements that may have clogged it. Restricted airflow in the condenser coil also causes your air conditioner to blow hot air. Therefore, keep it clean and maintain a clearance of 2-feet around the condenser unit.

Need help with your air conditioning unit that’s blowing hot air? Contact us at Freezing Mechanical through a call or message. Our professional technicians are available 7 days a week to serve the Miami Gardens and surrounding areas.