*Portland Metro/Vancouver Metro/Astoria includes Beaverton, Gresham, Hillsboro, Aloha, Cornelius, Damascus, Fairview, Forest Grove, Gladstone, King City, Lake Oswego, Milwaukie, Oregon City, Sherwood, Tigard, Troutdale, Tualatin, West Linn, Wilsonville, Wood Village Sandy, Aurora, Wilsonville, Newberg, Sherwood, Donald, Hubbard, Woodburn, Amity, Carlton, Dundee, McMinnville, Sheridan, Willamina, Columbia County, Rainer, Saint Helens, Warren, Scappoose, Vernonia and Astoria.
While there's nothing you can do to guarantee your air conditioner or furnace will never need repairs, there are ways to take better care of your system. Changing out the air filters every 3-6 months, making sure nothing is obstructing or interfering with the outside unit, and keeping all vents unblocked in well-used rooms will help keep your air conditioning and heating system operating efficiently.
When your furnace filter becomes dirty, dusty and clogged, you can expect some negative effects on your furnace efficiency and your indoor air quality. The forced air is supposed to get blown through the filter and the filter is supposed to trap any particles so they don’t end up in your air ducts and throughout the house. When the filter has trapped too many particles and it is clogged up, the air keeps blowing, but some of those trapped particles will end up in the system and your living space. Another effect is that the furnace has to work harder to get the same amount of air through that dirty filter, so your heating bills may go up.