Why Your Heat Pump Isn’t Switching to Heating Mode

There’s nothing like a heat pump in your home providing warmth during the cold winter months. Like most appliances, you expect it to work as intended after a few adjustments on your thermostat. But what if it doesn’t? What could be the reason why your heat pump isn’t in heating mode? Trusted HVAC repair contractor Schmitt Heating & Air Conditioning answers this question below.

Faulty Thermostat

It is not uncommon for a thermostat to experience problems, and that could be what’s causing your heat pump to remain stuck in cooling mode. Wiring issues could be preventing the unit from working properly; one or more disconnected wires means the thermostat can’t send a signal to the system. Unless you have the know-how when it comes to electronics, this is something that is best left to your local HVAC technician.

Refrigerant Leak

Like most HVAC systems, your heat pump contains a fluid called a refrigerant. It is a component that plays an integral role in the unit’s heating and cooling process. It doesn’t run out like gasoline, but it can leak out of your heat pump, which is not a good thing because this compromises the system’s efficiency and performance. One way to tell if there’s a refrigerant leak is when you hear a hissing or bubbling sound coming from the heat pump. Get in touch with your local HVAC company right away to schedule heating repair.

Broken Reversing Valve

The reversing valve is one of the heat pump’s most important components. Sitting on the refrigerant line, it reverses the flow of the refrigerant, which happens when you switch between heating and cooling modes. If the system isn’t switching to heating mode, it’s possible that the reversing valve is stuck. Call your HVAC technician to determine if it’s indeed stuck or already damaged and worn out.

For all your heat pump needs, turn to the experts at Schmitt Heating & Air Conditioning. We have over 50 years of experience providing heating replacement and AC repair services to homeowners in San Francisco and the surrounding communities. Call us today at (415) 522-0966, or fill out our contact form to schedule an appointment.

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