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Why Won’t My Ductless Heating Switch to Cooling?

Heat pumps are pretty ingenious systems. They offer both heating and cooling, and switch easily between modes – unless something is wrong. There can be a few reasons why your ductless system may not be switching to cooling mode, and with the summer solstice just around the corner, it’s important to call the experts at Comfort Flow Heating for help so you don’t compromise your comfort.

How Heats Pumps Switch Modes

Heat pumps are able to switch between heating and cooling because of a component called a reversing valve. This valve changes the directional flow of the refrigerant in the system, and changing direction allows the heat pump to change modes. However, all you have to do to change modes is press a button on your dual-mode thermostat.

Reasons Your Heat Pump Won’t Switch Modes

Here are some of the more common reasons why your heat pump may not be switching to cooling mode:

  • The reversing valve is stuck – the reversing valve works via a sliding mechanism that slides from one side to the other. However, if the valve becomes stuck, it won’t slide. Reversing valves can become stuck in a specific mode or between modes, and you’ll need expert help to resolve the situation.
  • The thermostat is broken – your thermostat is the main control for your heat pump system; if there’s a problem with the thermostat, typically an electrical problem, the heat pump won’t be able to change modes.
  • The solenoid fails – on the reversing valve is a small electronic component called a solenoid. The solenoid helps the reversing valve to slide. If the solenoid malfunctions or breaks, the valve won’t be able to slide back and forth.

Heat pumps may not have many moving parts, but they are still complicated devices. As such, it’s important to allow only trained specialists to handle all repair work for your heat pump. The experts at Comfort Flow Heating have the training and expertise necessary to handle all of your heat pump repair needs in Eugene, OR, so call us today!

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