Why is My A/C Blowing Warm Air in Collinsville, IL?

functioning ac unit Collinsville Illinois

What to look for when your A/C unit blows hot air instead of cold

Your air conditioning systems are made up of an indoor unit and an outdoor or condenser unit. Both units must be working well for the air to be cool in your home or business place. There are several reasons why your AC unit may be blowing hot air in Collinsville, IL. Here are some of the most common reasons that may require you to call in a professional to fix the problem.

Blockage in the Condenser Unit

Leaves or other debris can become stuck in parts of the outside unit. This can cause a blockage and prevent it from sending cool air through to the indoor unit.

Air Filter Needs Changing

The filter of your indoor unit should be changed once per month. If this is not done, dust, dirt, and other particles may block the flow of cool air.

thermostat settings and working a/c units Collinsville Illinois

Wrong Thermostat Setting

The thermostat at your home or business may be set to “heat” instead of “cool.” Also, if the “auto” button is set to “on” your AC unit will vent warm air even though the outside unit is not running.

Break in the Electrical Supply

Sometimes the circuit breaker may “trip” or a fuse may blow. The breaker is found on the electrical circuit that supplies power to the outdoor unit. If this happens, warm air may come through the vents because the circuit has stopped supplying electricity to the outside unit.

Refrigerant Leak

Refrigerant is a liquid that helps the AC unit vent cool air. Your AC unit may be blowing warm air in Collinsville, IL because of low refrigerant. This happens when the refrigerant is leaking and will need to be refilled.

Leaking, Broken, or Disconnected Air Ducts

A leak in an air duct may cause warm air to blow through your AC unit. If a return duct is broken or disconnected, this may cause the indoor unit to pull in warm air from outside. Because these ducts may be hidden in your walls, basement, or attic, you may need professional help to fix this problem. If your AC system is blowing warm air, contact Dixon Heating & Air Conditioning. We specialize in air conditioning maintenance, air conditioning tune-up, and air conditioning repairs in Collinsville, IL.

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