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Speedy Air Conditioning Service Blog

Why Your Heat Pump Is Stuck in AC Mode

If you use a heat pump for climate control, you already know that it can act as both a heating and air conditioning system. This is normally quite an advantage over other climate control systems, but it does have the potential to become a problem. You don’t want your heat pump to be blowing cold air in the middle of winter, obviously. If your heat pump seems to be stuck in air conditioning mode, read on to find out why.

The Reversing Valve

The reason that heat pumps are able to offer both heating and cooling functions is because of a part called the reversing valve. The reversing valve is a four-way valve that sits in the refrigerant line, and dictates which direction the refrigerant flows through the system. Inside the valve is a slide, which moves back and forth between two positions. Depending on the position the slide is in, the heat pump will act as either an air conditioner or a heater. The slide is controlled by an electromagnet, called a solenoid.

Valve Problems

If your heat pump is stuck in one mode or another, it’s very likely because there’s an issue with the reversing valve. There are two possible problems that could be affecting the reversing valve. Either the slide is stuck in the system, or the solenoid has lost its charge. If the slide is stuck, the valve will need to be opened (by a professional) in order to free the slide and return the system to proper operation. If the solenoid has lost its charge, however, there isn’t much that can be done. The solenoid will need to be replaced in order to repair the issue.

Speedy Air Conditioning Service provides heat pump repair services throughout Jensen Beach, FL. Call today for an appointment with one of our experts.

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