I think it's hungry.MissCroft said:My furnace is making a somewhat loud humming noise. I first noticed it a week ago but then it stopped. Now it's doing it again. Any ideas why?
I could say it doesn't know the words but I won't. Tow probables........There is a low voltage transformer used to power the thermostat and control board. Also the fan motor if out of alignment or about to expire will hum.MissCroft said:My furnace is making a somewhat loud humming noise. I first noticed it a week ago but then it stopped. Now it's doing it again. Any ideas why?
That would be a squeal not a humthirdtime said:It could be the belt between the fan pulley and the motor has stretched and is starting to slip. A simple tension adjustment would fix that.
MissCroft said:My furnace is making a somewhat loud humming noise. I first noticed it a week ago but then it stopped. Now it's doing it again. Any ideas why?






