A frozen heat pump can be frustrating because it can impact the comfort in your Greenville, SC home. However, understanding what causes this can help you address and prevent this issue. Here are some common causes and solutions for a freezing heat pump.

Low Refrigerant Levels

One common cause of a freezing HVAC system is low refrigerant levels. When levels drop too low, it can’t absorb enough heat from the air. This lack of heat causes the evaporator coil to freeze.

Regular maintenance and checking for leaks can prevent low refrigerant levels. If you suspect low refrigerant, contact a licensed technician to inspect and refill your system.

Blocked Airflow

Blocked airflow can also cause your heat pump to freeze, as debris can obstruct the outdoor unit. This blockage restricts the airflow, which then results in your coils freezing.

Regularly cleaning the outdoor unit and removing any debris can help maintain proper airflow. Make sure there is at least two feet of clearance around the unit for optimal performance.

Faulty Defrost Cycle

The defrost cycle is critical for preventing ice buildup on your heat pump. If this cycle malfunctions, the unit won’t defrost itself properly. This failure can lead to your system freezing up.

A professional technician can check and repair any issues with the defrost cycle. Regular maintenance can also ensure that this system works correctly.

Thermostat Issues

Incorrect thermostat settings can contribute to a freezing heat pump. If the thermostat is set too low, the system may run continuously and cause the coil to freeze.

Adjusting the thermostat to a higher temperature can prevent the system from overworking. Additionally, make sure a professional correctly calibrates your thermostat and ensures it functions properly.

If you find that your heat pump freezes, call Palmetto Heating & Air LLC to schedule repair services. We’ll diagnose the problem and get your heat pump in working order to restore the comfort in your home.

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