katkonk
Feb 25, 2012, 10:10 PM
Our Lennox furnace comes on, but will not stay on when you turn it on unless you turn the thermastat up to around 80 degrees. It has a new thermastat and did it with the old one too. There is a blinking green light inside that blinks about every 2 seconds. Any ideas will help before I have to call a repairman and get ripped off. Thank you in advance, Kathy