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

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Coleman evcon furnace

If i have already cleaned the flame sensor and the unit still goes out when the blower motor kicks on,,,what else could be the issue?...heat exchanger?...bad flame sensor...gas plug?

any help would be great

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  • Matt McElhenny
    Matt McElhenny May 11, 2010

    Could be a bad heat exchanger. a crack or hole can cause the blower to effect the air pressure in the heat exchanger. How old is the unit? Does the pressure switch trip? Does the flame blow around when the blower comes on? Any of these can indicate a bad HX. Does the limit switch trip? Is it clean?


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Is the air filter clean afc could be dirty

Posted on Jan 22, 2010

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