Furnace starts out great & then later not?
Two trips in a row now are furnace starts out great! Lots of heat & by morning when we wake it blowing cold. Can anyone help me fix this? Suppose to another cold night.
Forum Discussion
oldbeek, I have to agree with Suburban that you have restricted ducting causing the high limit switch to open. Mine does the same but I don't think mine cuts out at six cycles. Mine runs a long time with about 2 minutes burner on and 1 minute burner off. I have also added an additional duct but have not tested it yet. I have an OEM board not a Dinosaur.
To the OP, can you tell if the burner is cycling while the blower continues to run?
To the OP, can you tell if the burner is cycling while the blower continues to run?
