Categories: HVAC

5 Common Cold-Weather Heat Pump Issues

Heat pumps have revolutionized how we heat our homes, offering an efficient alternative to traditional heating systems. However, as the temperature drops, you may encounter some issues associated with the operation of your heat pump during cold weather. In this post, Perfect Degree HVAC discusses five of these problems and shares tips on keeping your home comfortable throughout the colder months.

Top 5 Heat Pump Problems During Winter

1. Frost Buildup on the Outdoor Unit

Winter brings snow and frost, which can accumulate on your heat pump’s outdoor unit. This frost buildup impedes the unit’s ability to absorb heat from the outside air, significantly reducing efficiency. To prevent this, regularly check the outdoor unit and gently remove snow and ice. Ensure the unit is installed in a location where snow drifts are less likely, and consider installing a cover that allows for airflow but protects the unit from accumulating snow.

2. Struggling to Heat in Extremely Low Temperatures

Heat pumps are praised for their efficiency, but when temperatures plummet, they may struggle to provide adequate heat. In areas where winter temperatures can be harsh, it’s crucial to have a cold-climate heat pump designed to operate efficiently in extreme cold. If your heat pump is struggling, consider using supplemental heating or upgrading to a model suited for lower temperatures.

3. Emergency Heat Mode Activation

When temperatures drop significantly, your heat pump may automatically switch to emergency heat mode, using auxiliary heat strips for additional warmth. While effective, this mode is less energy-efficient and can lead to higher utility bills. To minimize reliance on emergency heat, ensure your home is well-insulated and sealed against drafts. Regular maintenance of your heat pump can also help it run more efficiently in standard mode.

4. Malfunctioning Defrost Cycle

The defrost cycle is vital for removing frost from the outdoor unit and maintaining efficiency. If this cycle isn’t working correctly—either not running when needed or running too frequently—it’s a sign of trouble. This issue can be due to faulty sensors, wiring, or control board. Proper maintenance and timely repairs by a professional technician can keep the defrost cycle functioning properly.

5. Noisy Operation in Cold Weather

Increased noise levels from your heat pump during the cold months are not uncommon. These sounds might be due to the defrost cycle activating or the components expanding or contracting due to temperature changes. While some noise is normal, loud banging, squealing, or grinding sounds indicate a problem that requires attention. Regular maintenance checks can identify and fix loose components or other issues causing excessive noise.

Preventive Maintenance Tips

Preventive maintenance is key to avoiding common cold-weather heat pump issues. Call a professional HVAC technician to inspect and service your heat pump before the cold season begins. This checkup can identify potential problems before causing your heat pump to underperform. Here are more preventive maintenance tips to keep in mind.

  • Regular filter changes – Clean or replace your heat pump’s air filter every 30 to 90 days to prevent airflow restrictions and inefficiencies.
  • Clear surroundings – Keep the area around your outdoor unit clear of debris, snow, and ice. A clear space allows for optimal airflow and heat exchange.
  • System checkups – A professional HVAC inspection will ensure all components are functioning correctly and efficiently. This includes checks on the refrigerant levels, electrical connections, and defrost cycle operation.

Contact Us Today

Trust Perfect Degree HVAC to ensure your heat pumps operate efficiently throughout the winter. We offer reliable maintenance and prompt professional servicing to keep your heat pump in the best condition to handle cold-weather challenges. Call us at (610) 529-7372 or fill out our contact form to get started.

Jennifer Woodruff

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