Heat pumps are well known for their ability to switch between heating and cooling modes, which is why many people install them in the first place. This is a great benefit, but it also opens up the heat pump to certain issues. Mainly, it creates the possibility for the system to become stuck in one mode or another. If your heat pump appears to be stuck in heating mode this summer, read on to find out why.
The Reversing Valve
The reversing valve is the part of the heat pump that allows it to offer heating and cooling functions. It’s a 4-way valve that sits in the refrigerant line. A slide inside the valve moves between two different positions, which dictate the direction that refrigerant flows through the system. The slide is controlled by an electro magnet called the solenoid, which moves the slide back and forth. When the heat pump switches modes, it runs a current through the solenoid to pull the slide to the proper position. If a problem develops with the reversing valve, the heat pump will not be able to switch modes.
Problems with the Reversing Valve
There are two possible problems that can affect your reversing valve. First, it’s possible that the slide is stuck. If that happens, the valve will need to be opened and the slide freed to restore function. Second, the solenoid might have lost its charge. Unfortunately, if that happens you’re going to need to have a new solenoid installed. Either way, if your heat pump is stuck in heating mode this summer, one of those issues is probably causing it. You’re going to need to have a professional examine your system to determine the real cause.
Switzerland Air provides a full range of heat pump repair services throughout Freeport, TX. Call today to schedule an appointment with one of our expert technicians.