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Serving the Greater New Braunfels, TX Area

Serving the Greater New Braunfels, TX Area


Why Won’t Your Heat Pump Actually Heat?


A heat pump is a convenient way to provide comfort to a home since it works as both a cooling and heating system. Changing between the two modes is as easy as adjusting the thermostat. Once colder weather starts in winter, you only need to set the thermostat to a higher temperature and the system will switch over without trouble to begin heating. 

Except—well, no heat pump can work 100% free of malfunctions, so you may find yourself in a situation where your heat pump isn’t changing into heating mode when you need it. It may still send cool air from the vents, or maybe it isn’t sending out air that’s warm enough. What’s wrong, and does this mean you need to call us for heating repair in Schertz, TX?

The Problem May Be a Simple One

We definitely encourage you to keep us in mind for repairing your heat pump. But before you call our technicians for assistance, there are a few troubleshooting steps to take to see if there isn’t a simple error behind the “no-heat heat pump.”

First, double-check the thermostat settings. You may have an older summertime program there that isn’t changing the heat pump into heating mode. Maybe someone else fiddled with the settings. 

Second, see if the heat pump is turned on. There is a switch near the outside unit of the heat pump that can be used to shut the system down if it doesn’t need to work for a few weeks. You may have shut the system off and forgotten about it.

Third, if you aren’t getting enough heat from the heat pump, see if the HVAC filter is clogged and needs to be changed. A clogged filter left over from the summer will prevent enough airflow from going through the heat pump to effectively warm the house.

The Possible Bigger Problems

It looks like you have an actual malfunctioning heat pump that needs repairs. No problem, we’re already on our way! We can diagnose what’s caused the heat pump to either fail to heat or struggle to heat, and then get it fixed so it does heat.

One of the most common reasons for a heat pump that’s stuck in one mode is a broken reversing valve. This valve is what allows a heat pump to reverse the direction refrigerant flows through it, which changes the heat pump from cooling to heating mode and back. If the valve breaks it will become stuck in one position. Thankfully, this is easy to fix: our technicians can replace the valve.

The other common problem is a loss of connection between the thermostat and the reversing valve. The thermostat must send a signal to agitate the valve to cause it to change positions and switch between heating and cooling modes. If the thermostat loses this connection, nothing will happen when the settings on the thermostat are changed to activate heating.

There are a few other less common causes—don’t worry, we’ll find out which one has created the problem and have it fixed. 

Thayer Air Conditioning: Your Comfort Is Our #1 Priority! Call us for any help you need with your home heating in the Greater New Braunfels, TX Area.

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