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

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Coleman Evcon Ignition Failure

I have a Coleman Evcon downdraft mobile home furnace (modelDGAH077BBSA) that would not fire this morning. All the relays andsolonoids appear to be activating. The gas relay does open and when thesensor detects unburnt fuel it shuts down and purges the system, youcan smell the unburnt fuel at the chiminy. The system light then goesfrom steady to one blink every 2-3seconds.


Thanks,
Ken

Posted by on

  • sethchristy Nov 11, 2008

    ignition failure

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6 Suggested Answers

heatman101
  • 43501 Answers

SOURCE: Coleman furnace -- fan runs, ingniter won't light,

Hi,
The chances are that the furnace was running when the power went out. This will cause the high limit switch to cutout and needs to be manually reset.
You will find that switch in the blower compartment near the blower. Usually somewher near the highest point of the cabinet.
Push the little red button firmly till it clicks.
When the power goes out while the furnace is running the heat builds up because the blower shuts down immediately and causes this limit switch to cut out.
If you have a electric tester you can also follow the low voltage circuit till you find the open switch. Ther is usually a wiring schematic on the door cover of most furnaces.

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Posted on Dec 09, 2009

muttandjeff
  • 359 Answers

SOURCE: Rollout Limit Switch Keeps Tripping

have someone check the gas presure most likely too high no more than 11

Posted on Dec 17, 2008

  • 189 Answers

SOURCE: coleman furnace wont fire

Check inside the door panel next to the wiring schematic, you should find the diagnostic codes. Look up 7 blinks. This should narrow down the problem. ( It sounds like a bad hot surface ignitor).
Good luck.....

Posted on Apr 10, 2009

  • 1 Answer

SOURCE: I have a Coleman Evcon gas (propane) furnace. When

If the unit fires but the main blower fan doesn't come on the the unit is shutting off on a temp high limit switch and it sounds like the problem is the main blower fan motor or control

Posted on Jan 18, 2010

  • 1 Answer

SOURCE: Have a Evcon Coleman Furnace shows three green

I have had the same problem with mine for the last 2 years. Remove the motor on the side of the furnace(usually held on by 3 screws) and turn the fan blades inside by hand. after sitting all summer it seems to get stuck. If it moves freely, replace the motor and try to start it again. This fixed mine the last 2 years! Hope this helped.

Posted on Oct 04, 2010

  • 1033 Answers

SOURCE: I have a Coleman evcon gas furnace. The inducer

Hello, it sounds like the pressure switch is not closing on your furnace and remaining open, reasons for this could be a blocked flue pipe, the tubing going from the inducer motor to pressure switch could be blocked, loose, or have condensation in it, or the switch itself is bad. U can check the tubing by taking it off blowing some air through it and making sure no condensation is in the tubing, then reinstall it. If everything checks out good then the pressure switch is bad and must be replaced.

Posted on Feb 20, 2011

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