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

8 Answers

Every year works for a while then gives symtoms of a bad t-stat

I have a coleman model DGAT056BDD furnace 1996 year it was installed in the past 12 years have replaced t-stat at least 6 times the one that i have now has lasted the longest im getting a flashing code 5 but i have lost my list of codes im getting the same symtoms as usual it ignintes pre heats and then the flame blows out if i reset it will work and heat up but when its time start back up it will attempt to work about to 3 to 5 times then cut and it flashes 5 times until reset again.

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  • grubirwin Jan 26, 2009

    i have a coleman model DGAT056BDD furnace 1996 year it was installed in the past 12 years have replaced t-stat at least 6 times the one that i have now has lasted the longest im getting a flashing code 5 but i have lost my list of codes im getting the same symtoms as usual it ignintes pre heats and then the flame blows out if i reset it will work and heat up but when its time start back up it will attempt to work about to 3 to 5 times then cut and it flashes 5 times until reset again.

  • grubirwin Jan 28, 2009

    i have a coleman model DGAT056BDD furnace 1996 year it was installed in the past 12 years have replaced t-stat at least 6 times the one that i have now has lasted the longest im getting a flashing code 5 but i have lost my list of codes im getting the same symtoms as usual it ignintes pre heats and then the flame blows out if i reset it will work and heat up but when its time start back up it will attempt to work about to 3 to 5 times then cut and it flashes 5 times until reset again. i found list of codes and 5 flashes says that the gas valve is energized with no call for heat.is there anything i can ck in the wiring

  • grubirwin Feb 06, 2009

    another expert posted a comment and gave me a website to go to that might help and now the comment is gone if the person could please post that website again thank you

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Hello sir.... first try to turn power off to heater then watch operation. if it has a combustion blower motor it will come on, then after that next you should see the hot surface / or spark ignitor try to light pilot. Also on the door panel or controler you should be able to find out what it means when the light flashes three times. 
thank u

Posted on Feb 08, 2009

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Replace The Thermostat With A Higher Quality One But Yeah Its Definitely The Thermostat. I Replaced Mine Twice In One Year So I Went To An Heating,Venting And Cooling Repair Center And Ordered The One Made Especially For My Unit From The Original Manufacturer. Its Been 3 years now and its still working every time.
Thanks For Using Fixya.com
Sincerely,
Michael Scott

Posted on Jan 28, 2009

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Welcome to Fixya! Have you Tried taking a Can of Compressed air and Lightly Blowing out the Igniter???? I have to do this every Year with my Heaters and they Work just Fine.

Posted on Jan 26, 2009

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Flash Code:

No light = No power or open fuse

Steady green = Control has power

1 = Ignition failure

2 = Centrifugal switch shorted

3 = Centrifugal switch stuck open

4 = Limit switch cycling

5 = Gas valve energized with no call for heat

6 = Wrong polarity wired to furnace

these appearently are for that furnace

Posted on Jan 23, 2009

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Http://www.centraltrailer.com/furnace/cts_style_crest/style_pdf/dgat_bdd_parts.pdf
this link should help you, it sounds like the booster gasket. If you need further assistance let me know, also please take a moment to accept and rate my solution accordingly.
Thank you,
Lee

Posted on Jan 23, 2009

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Your thermocouple is not getting even heat and it's shutting the gas valve. Check for drafts in the furnace area.

Posted on Jan 23, 2009

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Just clean your flame sensor with a piece of steel wool

Posted on Jan 23, 2009

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