As temperatures rise, the last thing any homeowner wants is for their heat pump to refuse to switch to cooling mode. If you’ve set your thermostat to cool and your heat pump is still blowing warm air or worse, doing nothing at all there’s a good chance that your system’s reversing valve is malfunctioning.
The reversing valve is the component responsible for switching your heat pump between heating and cooling modes. When it stops working properly, your heat pump may get stuck in one mode, leaving you sweating through the summer or freezing in the winter. Fortunately, this issue can be fixed with professional AC troubleshooting support.