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, and 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 + Plumbing 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 to get 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 and recharged. A technical at J&W Heating and Air + Plumbing 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 in 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, and 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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