Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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I have a coleman/evcon electric ignition lp furnace. I get error cede combustion air switch stuck closed even after replacing the combustion air switch.

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Have you tried to replace pressure switch for the combustion air. If your not sure where to find it if you pull the front panels off follow the flue pipe down to combustion chamber the combustion fan motor is either inside the flue pipe or out side of it not sure on the one you have but you should see two plastic tubes that connect to a barb onto the topside of the fan and one on the bottom they both should go back to the pressure switch. i hope this helps you if you have any more question or if this doesnt fix the problem just reply back to this message . Make sure fan is working when furnace starts up. It should be the first thing that comes on when there is a call for heat

Posted on Jan 21, 2009

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