Essential Heat Pump Maintenance Tips for Seattle Winters
Alex Stelmakh • November 24, 2025

Essential Heat Pump Maintenance Tips for Seattle Winters

Seattle winters are mild compared to much of the country. Still, the constant dampness, chilly temperatures, and prolonged periods of overcast weather can cause your heat pump to work harder than it needs to. To keep your system efficient, reliable, and ready for the season, here are the essential maintenance tasks every Seattle homeowner should perform.


Regularly Replace Air Filters

Seattle’s high moisture levels and indoor heating cycles can cause filters to clog more quickly than in drier climates. Ready Energy Solutions, your go-to partner for heating, cooling, and indoor air quality needs, wants to ensure that your system always performs optimally. That’s why we recommend checking your air filter every four to six weeks during the winter months.


When the filter becomes clogged with dust, pet dander, and other airborne pollutants, it not only reduces your heat pump’s ability to keep your home comfortable, but it also costs you money. Adequate airflow is essential for the performance and longevity of your HVAC system. The added strain caused by a dirty air filter increases your monthly energy bill while decreasing the lifespan of your unit. Regular maintenance can prevent these issues, saving you money in the long run.


Inspect and Clean Your Outdoor Unit

As mentioned, heat pumps rely on steady airflow to function correctly. Seattle’s windy, rainy winters often lead to the accumulation of wet leaves, fir needles, dirt and mud splatters, and moss buildup. It’s recommended to clear the area around your outdoor unit by at least two to three feet and gently wash the fins with a hose when temperatures are above freezing to maintain peak performance.


Check the Defrost Cycle

Even in Seattle, heat pumps can accumulate frost during colder nights. A functioning defrost cycle will prevent ice buildup, which can significantly reduce efficiency. If you notice thick ice that doesn’t melt within 30 minutes, schedule a professional inspection with our friendly team.


Test Your Thermostat

For maximum comfort and efficiency, use the "Heat" or "Heat Pump" mode, not the "Emergency Heat" mode. Avoid drastic temperature swings to help maintain the lifespan of your unit. Lastly, consider a smart thermostat optimized for heat pumps for steady, efficient operation.


Schedule Professional Heat Pump Maintenance

Seattle residents should aim for a tune-up every fall or early winter. It is essential to have a certified technician check refrigerant levels for optimal performance and safety. Having the coils cleaned and moving parts lubricated will also help keep your heat pump performing at its best. Having the electrical components tested and ensuring proper airflow, along with the steps above, will help increase your heat pump's lifespan and reduce the risk of breakdowns during the coldest weeks.


Quality You Can Count On

Call Ready Energy Solutions today at 206-750-7020 to schedule your heat pump maintenance in Seattle, WA. Our team of experts takes the time to calculate heating and cooling loads for your property, allowing us to match you with the ideal size heat pump. This will enable you to enjoy consistent heating or cooling throughout the year without incurring unnecessary costs. We even offer our customers exclusive promotions to help save even more money. When you want quality HVAC services that you can count on, look no further than our friendly and knowledgeable team!

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