Hello there I cleaned the flame sensor now the furnace won’t start at all, is there anything else I can do before I call the serviceman? Thanks


My furnace keeps turning on and off every minute.
The flam comes on and than you can here a puff, than it shuts off. Keeps repeating over and over again. I can not get the temperature higher than 70 Deg. Please some one help!

Try cleaning the flame sensor if so equipped.