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It might seem counterintuitive for a heat pump to freeze up during the scorching summer months in Columbia, MD. But when certain conditions align, heat pumps can struggle to extract heat efficiently, causing the evaporator coil to become too cold and leading to the formation of frost or ice on its surface. Read on to learn why a heat pump can freeze up and ways to avoid it so that your system continues cooling your house efficiently.

High Humidity

High humidity can impact the heat pump’s evaporator coil and cause the system to freeze up. When warm and moisture-laden air passes over the coil, its temperature drops significantly. If the humidity is exceptionally high, the coil can become so cold that the temperature reaches or falls below freezing. As a result, the condensation on the coil freezes. The ice that forms on the heat pump impedes the system’s ability to extract heat from your house efficiently.

Airflow Obstructions

As ice accumulates on the evaporator coil, it restricts airflow and forces the heat pump to work harder. This added strain not only increases your cooling bills but also the risk of a severe breakdown. Rather than pay for a costly system replacement, schedule an emergency heat pump repair in Columbia, MD, right away to resolve the problem.

Low Refrigerant Levels

Refrigerant plays a critical role in the heat exchange process in heat pumps. It’s responsible for absorbing and releasing heat as it circulates through the system. When refrigerant levels are low, the pressure in the system drops, causing the refrigerant to expand and evaporate at a lower temperature. As a result, the excessively cold temperatures in the evaporator coil cause the moisture in the air to freeze on its surface. This ice buildup will hinder the heat pump’s ability to cool your living spaces effectively.

Neglecting to schedule heat pump repairs and annual maintenance is why most heat pumps freeze up. Our HVAC professionals can inspect your system thoroughly and restore its energy-efficient functionality quickly to ensure your house feels comfortably cool when the heat outside is unbearable. Contact us today to schedule your heat pump service immediately.

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