Is there any chance that your air filter looks like the dirty one in the photo? If so, your furnace may be working harder than it should, which could cause premature failure of mechanical parts. Consider scheduling a furnace tune-up to keep your furnace in tip-top shape.
An annual furnace tune up can help detect small problems before they become big problems and keep your system running optimally. You’ll also breathe easier knowing that air filters and humidifier pads (if any) were changed out for new ones.
In addition to installing your new air filter, a furnace tune up by KJ Thomas Mechanical consists of the following: