Why Your AC is Blowing Hot Air

As an expert provider of air conditioning services, $25 Plumbing Heating & Air Conditioning has encountered virtually every AC problem that homeowners experience. One of the most common reasons that we get calls is for an air conditioning unit that has started to blow hot air. We discuss the possible causes of this issue below:

Low Refrigerant Levels

One common reason for your AC blowing hot air is low refrigerant levels. Refrigerant is a chemical that helps your AC unit pull the heat out of the air. It is dangerous to handle, and only a specially certified HVAC professional can perform this type of air conditioning repair in Corona, CA.

Lack of Power in Outdoor Unit

Another reason for the air conditioning malfunction is that the outdoor unit, which takes heat out of the air, isn’t getting power, though your indoor unit still is. The lack of power is most likely caused by a blown fuse or a tripped circuit breaker.

Poorly Set Thermostat

Another cause of the problem is that the thermostat hasn’t been properly set. If this is the first time you’ve used your air conditioner this season, the thermostat may still be set to “heat.” Another problem may be that the “fan” setting is on. This causes the mechanism that cools the air to shut down while having warm, outside air pulled into the room. The setting of the thermostat’s fan should be “auto,” and its overall setting should be “cool” to maintain your home’s comfort and indoor air quality.

Dirty Evaporator Coils

One important part of air conditioning maintenance is to clean the unit’s evaporator coils. If they are clogged and dirty, they can’t help remove heat from the air. The result is your AC blowing warm air into the house on a hot day.

If you are experiencing none of the problems we mentioned above, your air conditioner may simply be on its last days and it’s time for air conditioning replacement. In that case, our professionals can help you choose the best, most energy-efficient AC unit for your home.

If you are in need of air conditioning installation or replacement, schedule an appointment with $25 Plumbing Heating & Air Conditioning today. Call us or fill out the form to speak with one of our industry specialists.