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Location pin iconWe serve 7 locations!
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Family-Owned & Operated Since 2001

606-759-5419

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Why Is My Heat Pump Stuck in One Mode?

heat-and-cold-houses

Heat pumps offer many great advantages to homes. But the best advantage of all is the simple convenience of being able to change a heat pump from cooling mode to heat mode (and back) with a simple adjustment to the thermostat. 

The weather is cooling down now, and you’ll soon shift your heat pump over to heating mode for the next several months. Usually, this won’t be a problem. But heat pumps, even with the best regular maintenance, can’t work completely free from malfunctions. You may discover that your heat pump won’t switch over to heating mode, and you’re either getting cool or room-temperature air coming from the vents. What’s happening, and is this something that requires calling our professionals for heat pump repair in Aberdeen, KY?

We’ll look at why you may have a stuck heat pump in more detail below.

Common Reasons a Heat Pump Gets Stuck in One Mode

There are several potential reasons why your heat pump may be stuck in either cooling or heating mode. Understanding these common causes can help you decide if you need a professional repair.

1. Thermostat Issues

The first place to check is the thermostat. If the thermostat is faulty or miscalibrated, it may send incorrect signals to the heat pump, causing it to remain stuck in one mode. You may be able to troubleshoot this by ensuring the thermostat is set to the correct mode and temperature, but a more complex issue will require professional attention.

2. Problem With the Reversing Valve

The key component that allows a heat pump to switch between heating and cooling modes is the reversing valve. This valve changes the direction of refrigerant flow, enabling the system to alternate between modes. If the valve is stuck, malfunctioning, or has lost its electrical connection, the heat pump won’t be able to switch modes as it should. Unfortunately, fixing a reversing valve is not a DIY task, and you’ll need a licensed technician to inspect and repair the issue.

3. Low Refrigerant Levels

Refrigerant is essential to a heat pump’s operation in both heating and cooling modes. When refrigerant levels are low due to leaks or improper charging, it can cause performance problems in either mode. In some cases, low refrigerant may prevent the reversing valve from working properly, leaving your heat pump stuck. If you suspect a refrigerant issue, it’s important to call a professional.

4. Electrical Issues

Like any complex system, heat pumps rely on a variety of electrical components to function. If there’s a fault in the wiring, a broken relay, or a tripped circuit breaker, the heat pump may lose its ability to switch modes. Electrical issues should always be handled by trained professionals to ensure safety and prevent further damage to your system.

5. Faulty Control Board

The control board in your heat pump acts as the brain of the system. It processes signals from the thermostat and sends instructions to different components, such as the reversing valve. If the control board malfunctions, it can misinterpret these signals, causing the heat pump to get stuck in either heating or cooling mode. Diagnosing control board issues is tricky and best left to the experts.

In most cases, a heat pump that’s stuck in one mode will require professional repairs. Our trained technicians can quickly identify the cause of the problem and provide reliable, long-lasting repairs.

Experience the Premier Difference! Premier Heating & Air has been family-owned and operated since 2001. 

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