When it comes to heating and cooling systems, there are a few things homeowners in northwest Washington can safely do to keep their HVAC units running smoothly. But according to Feller Heating, knowing when to call in the experts at Feller is just as important.

What you can do yourself

Homeowners are encouraged to check and change air filters regularly — every one to three months, depending on the type of filter and usage. A clogged filter can reduce airflow and force the system to work harder, increasing energy costs and shortening equipment life.

“The biggest thing we see is more than one filter. If people have more than one filter installed, it’s a lot of air restriction on the unit,” Dye said. “It can pretty much shorten the lifespan of your equipment.”

Outdoor units should be kept clear of leaves, dirt and debris.

Inside, homeowners can keep vents and registers unobstructed and dust-free. Setting a programmable thermostat or using smart technology can also improve comfort and efficiency.

When to call the pros

Anything that involves electrical components, refrigerant lines or internal diagnostics should be left to the licensed technicians at Feller Heating. Annual professional maintenance is also recommended — ideally in the spring and fall — to inspect key parts, check for leaks and ensure the system is operating safely and efficiently.

For homes in northwest Washington’s damp climate, professional cleanings of ductwork and coils may be especially beneficial.

Peace of mind pays off

While DIY maintenance can help save money, knowing your limits can prevent costlier repairs down the road.