BuckHunter31
Senior Member
I have two furnaces in my home, one for each level. The main level furnace is cutting on and off in the attic but the fan stays on while running and blowing slightly warm air. The upstairs one is is staying on while running and blowing hot air like it should. I just replaced the air filters when we recently moved in. The main level just wont get warm. What could be the problem with the furnace? Thank you in advance.