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My coleman Evcon model DGATO70BDC 1994 starts up and then locks out. The pilot lights and then furnace runs for maybe 2-5 minutes and all that is still running is the air chamber fan. I am thinking of just replacing all parts that could be responsible the problem. There's not much there as probably you know. There is no circuit board just basic electronic ignition,relays thermo senors and etc.. Any help would greatly be appreciated. James

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Does your furnace have an air flow sensor? Blowing out the lowest tube will sometimes clear it and allow your furnace to operate. Lack of differential pressure across the burner will cause a lockout.

Posted on May 01, 2008

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22yooper
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SOURCE: Coleman Evcon model DGATO70BDC Starts to run then stops?

What you have is an ignition problem and your unit is shutting down on safety.

Posted on May 09, 2008

6ya6ya
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Posted on Jan 02, 2017

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