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View Full Version : Furnace shuts off and on


stp101
Mar 22, 2008, 04:11 PM
Furnace lites, runs for about 30 secs-1 min then shuts off then re-lits and does the same thing over and over. Furnace has pilot control module, what could be the cause

acetc
Mar 22, 2008, 07:02 PM
If the flame is good and strong, not yellow, you may have a flame sensor problem, try litely sanding the sensor (a small rod in the path of the flame with a single wire attached) if flame is yellow that indicates a dirty burner. Good luck, Mike