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Is Your AC Not Cooling? Here’s 3 Reasons Why

Jun 13, 2019
Heating, Air Conditioning, Geothermal, Electric | Leaking AC Repair Cincinnati | Nelson Comfort

It may not be as hot in Cincinnati as it is in Florida or Texas, but the temperature here has reached upper 80’s in the past week. If you feel your space getting warmer it may be time to check your air conditioner because it may not be cooling properly. Before you throw out hundreds of dollars trying to fix your system take a closer look at your unit. Below are a few reasons for your AC not cooling. Some of these repairs can be done at home while others require professional skill.

3 Reasons for Your AC Not Cooling

1.      Low Refrigerant Levels

The first thing to check when your AC isn’t cooling is the refrigerant levels. One of the main causes of your AC not cooling is low refrigerant. Low refrigerant levels are caused by the system never reaching a correct temperature. This then causes the system to shut off at random points allowing the warm air to blow in.  If this seems to be the problem as to why you AC isn’t cooling, call Nelson Comfort to get it checked out.

2.      Frozen AC Unit

Another reason as to why your AC isn’t cooling can be due to a frozen coil. Yes, if your AC is frozen, warm air will be produced. This is due to the dust, dirt, and debris that has been collected in the filters since your last maintenance check. These blockages can allow your condenser coil to freeze up and stop working. If this happens to you this summer don’t worry too much, it can be an easy fix. First try turning your AC off for 24 hours. This will allow your system to defrost and reset. If that doesn’t work, try cleaning the dirty coils. Cleaning the coils can allow the system to revive itself. You can either do this by yourself or by calling a professional. After all other steps have been attempted, and your system still seems to be malfunctioning, call an HVAC technician at Nelson Comfort and we can assist you right away.

3.      Check Electrical Wiring

The reason as to why your AC’s not cooling might have nothing to do with the actual AC unit. It might have something to do with its electrical wiring. An AC unit that isn’t working properly might just have a problem with its breaker. Breakers normally go out when the power goes out. Even if the power doesn’t completely go out, a strong surge could cause the breakers to breakdown. Check both breakers indoors and outdoors to see if there’s a problem. Look for the breakers labeled something close to AC, Condenser, or HVAC. Flip these breakers off and back on again to see if this minor tweak fixes your cooling needs.


As the Cincinnati heat continues to rise, we want you equip with the right knowledge to make sure your AC unit is working properly. Keep these 3 reasons in mind the next time your space starts to heat up and your AC starts to breakdown. The next time your AC isn’t cooling make sure to do one or all of the following: inspect the refrigerant levels, make sure your unit isn’t frozen, and check the breakers. If your AC still isn’t cooling, contact Nelson Comfort to inspect your AC and make necessary repairs.


About The Author

Dan Detmer
Dan Detmer is the owner of Nelson Comfort. Dan was born into the heating and cooling industry, coming from a family of well respected HVAC contractors in Dayton, Ohio. After working in the family business, Dan decided to work for a local HVAC wholesale business helping local contractors grow their business. When he felt his heart moving him back into the residential and light commercial business, Dan joined the Mortimer Heating & Cooling team in Cincinnati, where he had called home and become part of the community for several years. After a short period of time Dan purchased the company and created what is today, Nelson Comfort. Today he operates a company based on integrity, honesty, and stellar customer service. If you have any questions feel free to tweet (at sign) NelsonComfort and we will get right back with you!
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