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Why is My Heat Pump Freezing Up in Kinston, NC?

When properly functioning, heat pumps have the capacity to defrost their parts. If you detect a layer of ice on your heat pump’s components that doesn’t go away, the system may have an underlying problem. We’ll explain why your heat pump in Kinston, NC, freezes up.

Refrigerant Leaks

When you need your heat pump to cool your home during summer, the refrigerant flows to the indoor coil, where it absorbs heat and relays it to the outdoor coil. The outdoor coil helps to transfer this heat to the surrounding environment outside. During winter, the fluid moves heat from the outdoor coil to the indoor coil.

If the refrigerant leaks, the remaining fluid cannot absorb and circulate enough heat within the system. As a result, the system’s components can freeze. Schedule heat pump repair services to address refrigerant leaks.

Clogged Air Filter

If you don’t regularly clean or replace your air filter, it’ll eventually become clogged. The clogged filter creates a barrier that prevents air from entering your heat pump. If the system doesn’t get enough warm air from your living space during summer, its components freeze.

Dirty Evaporator Coil

When contaminants such as dust build up on the indoor coil, they block the refrigerant from absorbing heat from the indoor air. Since the refrigerant fails to absorb enough heat to warm the indoor coil, the moisture on the coil freezes. Schedule maintenance services twice a year to have your coils inspected regularly.

Faulty Reversing Valve

The reversing valve alters the direction refrigerant flows, depending on the season. When the indoor coil freezes during summer, the valve prompts the refrigerant to start bringing in heat from the environment to defrost the coil. If the valve is faulty, it cannot prompt the refrigerant to bring in heat during summer and the coil remains frozen.

Frozen heat pump components inhibit your system’s ability to keep your home comfortable. Call our experts at J & J Mechanical, Inc. for heat pump repair services whenever your system freezes in Kinston, NC.

Image provided by iStock

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