Washington winters may not be as severe as in the Midwest, but they are damp, chilly, and unpredictable. For homeowners in Seattle, Bellevue, and Tacoma, a reliable heat pump is essential to stay comfortable while keeping energy bills under control.
If your heat pump isn’t prepared for the cold season, small issues can quickly snowball into expensive repairs. That’s why proper seasonal maintenance is key to avoiding breakdowns when you need heating most.
Dirty filters reduce airflow and force your heat pump to work harder, leading to higher energy bills and strain on the system. In Washington’s damp climate, filters can clog faster due to dust, pollen, and moisture. Check your filters monthly and replace them at least every 60–90 days.
Your outdoor unit is exposed to leaves, branches, and debris, especially during fall in the Seattle area. Before winter sets in, clear away any obstructions and maintain at least two feet of clearance around the unit. This ensures proper airflow and efficiency.
Dirty coils prevent efficient heat exchange, causing your system to run longer and consume more energy. A technician can safely clean both the evaporator and condenser coils during a maintenance check.
Make sure your thermostat is calibrated correctly and set to an efficient temperature for winter use. If you’re using an older manual thermostat, consider upgrading to a programmable or smart thermostat for better efficiency and comfort.
In Washington’s wet winters, frost often builds up on outdoor units. A functioning defrost cycle is critical to keep the system running efficiently. If your heat pump struggles to defrost or ices up completely, it’s a sign you need professional service.
Leaky or dirty ducts can reduce efficiency by up to 30%. Have your ducts inspected and sealed if needed. In multi-story homes around Bellevue and Redmond, balanced airflow ensures even heating between floors.
While homeowners can handle basic cleaning, only a licensed technician can check refrigerant levels, test electrical components, and identify worn parts. Scheduling professional service with Hotwire before winter is the best way to prevent costly mid-season repairs.
Even with proper preparation, heat pumps can face issues in Washington’s climate. Watch for these warning signs:
The unit blows cold air instead of warm
The system runs nonstop but never reaches the set temperature
Ice buildup on the outdoor unit
Strange noises such as grinding or buzzing
Spikes in your energy bills
If you notice any of these symptoms, call a professional right away before the damage gets worse.
Some tasks, like replacing filters and clearing debris, can be done by homeowners. But refrigerant checks, electrical testing, and internal cleanings should always be handled by a professional HVAC technician.
Attempting DIY repairs on refrigerant lines or wiring can be unsafe and may void your warranty. Trust experienced technicians to keep your system in top shape.
