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Kool Breeze of Northwest Florida, Inc Blog

“Help! My Heat Pump Won’t Cool”


Heat pumps are mechanical devices that can start malfunctioning due to wear and tear over time. If your heat pump is blowing hot air during the warm summer of Florida, then it is time to call for heat pump repair in Navarre FL.

Take a look below at some of the reasons why heat pumps malfunction in this manner along with possible solutions.

How Do Heat Pumps Work

Heat pumps are cooling systems that also serve as heaters too, and operate by switching back and forth between cooling and heating functions. They are popular because a single pump can be used both in summer and winter for indoor temperature control. This makes them extremely efficient! In fact, we typically recommend heat pumps

This does mean that heat pumps are pretty complex as compared to air conditioners. Heat pumps are susceptible to issues that standard ACs are not. 

For instance, your heat pump can get stuck in the heating mode during summer and stop blowing cool air. If your heat pump fails to alter the temperature within your home, then you need to identify the issue and get it fixed.

Identifying the Problem

The first step to correcting the problem is identifying why the heat pump is not blowing cool air. Check the thermostat to see if it is actually set on cooling mode. If the thermostat is on heating mode then the heat pump will obviously blow hot air.

If your thermostat is getting old, it might be a good idea to replace it. This is especially true if you still have an older, manual thermostat. Even upgrading to a basic programmable thermostat will do you good, and even better is a smart or WiFi thermostat. Comparatively speaking to an HVAC system, they’re very affordable and an easy fix to make to your system!

If your thermostat is working fine then the reversing valve may be the reason that the pump is not working correctly.

The Reversing Valve

Heat pumps are built to function similarly to air conditioners to cool down the temperature. The one major difference is the reversing valve. 

A 4-way valve is built into the refrigerant line of the heat pump. There is a slide inside the valve that moves in either one of the two positions based on the setting. 

In the first position, the refrigerant flows in one direction to create a cooling effect. In the second position, the refrigerant generates heat by reversing the direction. If this valve gets stuck in one position for any reason, the heating pump only blows out cool air or hot air, depending on where it is stuck.

If you notice that your heat pump is blowing only hot air despite being set to cool and the thermostat is working correctly, then the problem is probably with the reversing valve. You should call a reliable heat pump repair service in Navarre, Florida.

Fortunately, you needn’t look very far!

Contact Kool Breeze of Northwest Florida, Inc. for professional HVAC services.

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