twohappycampers
Well-known member
Everything was good with our furnace until a couple of days ago. It runs normal for about 5 minutes, fan at full force and plenty of heat. Then after that the fan starts to slow down to the point where it's blowing hardly any air, although the heat at the registers itself seems to be fine. The furnace also seems to be noisier after the 5 minutes. Any ideas what we can check for to hopefully fix it ourselves, maybe avoid having to call for service again? Thanks, guys!