Lance furnace
It seems like the furnace cycles for too short of time ...can comes on then burner comes on for a minute or two then Shuts off and the fan continues to run for a minute mostly colder air....does get u...
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I had a similar problem, we were advised to blow out the furnace after removing the outside cover and using an air compressor. I got a mess of dust and crud. All's well now. Will repeat the process next fall.
