Why Your A/C is Blowing Warm Air and How to Fix It

The summer months in Florida are a perfect time to be outdoors. You are enjoying time with friends and family, hanging at the beach, by the pool, taking in the fresh, hot air. There is a time, though, when you are going to want relief. That time comes when you go home at the end of the day. Owning an HVAC Jacksonville FL system can be a massive benefit to the household, but some common issues can arise. One such is the air conditioning system blowing warm air, instead of cold. What causes this and how do you fix it? Our team at J&W Heating and Air has the answers for you!

Checking the Thermostat

The first thing that you are going to want to do to figure out the cause of the warm air blowing is the thermostat. It is straightforward to flick the little switch from cold mode to heat. If you have the thermostat on heat, it is not going to trigger the HVAC Jacksonville FL to kick on so that it can generate that cold air for you. Instead, it may turn on and blow the fan, warm air, to get to the temperature it is established at. This should always be the first thing to check as you troubleshoot and is an easy fix!

Adequate Power

The HVAC Jacksonville FL system that you have to require a lot of power to operate the way you would expect it to. Do you have sufficient power getting to both the inside and outside components of the unit?

A lot of different things run in the summer with air conditioning units, fans, etc. It can be easy for a circuit breaker to get overloaded and simply trip. Head to the electrical box to see if a tripped circuit breaker occurred. If it did, this is another easy win to get the system operating again properly.


You are going to need a professional for this one, but if the thermostat and the power are fine, chances are it is the refrigerant. The refrigerant is the chemical that the system relies on to generate the cold air you enjoy. When the refrigerant has a leak or only begins to run low after years of extended use, it needs to be refilled, recharged. A technical at J&W Heating and Air can assist in this regard to get refrigerant levels back to where they need to be.

A lot of different things can lead to your HVAC Jacksonville FL blowing warm air. You want to be aware of some of the common causes so that you can troubleshoot on your own. If all else fails, we are just one phone call away. We are here to come out to the home for repairs, regular maintenance, whatever is needed so that your valued central air conditioning system can begin to generate and cool down the home once again!

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J & W Heating and Air
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Stacy Russell
Stacy Russell
15:10 02 Jun 20
I will be recommending J&W to my friends and family. They were very professional and on time. Did a very well job in... a quality manner. Dustin, Mark, and Robert. Worked very well together and was in and out with no cleanup for me to do. Thanks so much for getting my home back to a cool environment.read more
Phillip Wallace
Phillip Wallace
13:46 27 May 20
Just had an entirely new, full HVAC install done at our old house in Riverside, which was a fairly big job. Brian and... Will did the installation, and were awesome. There was going to be issues leveling the air handler in the attic, so they moved it to a new spot and hung it instead, getting new parts/changing the plan on the fly. We're much happier with this new setup and location of the air handler. I really appreciated this, their professionalism/thoroughness, and flexibility. Brian and Will worked super-hard, and double-checked everything once the job was done. Would use this company again.read more
Louis Kincheloe
Louis Kincheloe
21:18 01 May 20
Two installers here early this morning. Worked all day. Very professional, extremely well mannered and quick to answer... all my questions. They are Dustin and Robert. Both men went above just installing my new unit, they were personable and knowledgeable in what they were doing. I was surprised when I found out these two hadn't been working that long together. They worked extremely well together. I highly recommend this two men.read more
Shirley Davis-So Brooks
Shirley Davis-So Brooks
18:10 01 Jun 18
Very pleased with installation of York A/C Heating unit. Jason Bottoms and Jason Flatearth were professional, ... arrived on time and completed the job in a timely manner. The unit looks great. They upgraded and repaired everything that needed it. Great Job.read more
James Ponciano
James Ponciano
22:46 03 May 18
A snake crawled into my outdoor condenser and stopped my 16 year old Trane last week on Thursday. The power surge took... out my blower unit circuit board and the motor. I called J&W and Rob was over within two hours of my call. I was spec'd a new York 17 seer system and it was up and running on Monday. Technicians Jason and Brian arrived promptly and every facet of the installation was thorough. When completed, I would not of even known they were there except they left my garage cleaner! Thanks J&W!read more
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