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I have a coleman model #DGAA070BDTB. The burner won't stay lite for more than 30 seconds to a minute. It has no codes. Please help

How do I test the flame sensor flame sensor by or part of ignitor clean or replace also check burner tubes for blockage

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When the t'stat starts the furnace, 1st the draft inducer motor runs for a few seconds, then the igniter glows and the gas valve opens.
The burner then lights, the igniter shuts off. If the burner shuts off when the igniter shuts off, then it's the flame sensor. 1st disconnect the power, remove the flame sensor and clean it with some 000 steel wool or scotch brite and reinstall it. 95% of the time that will fix it, otherwise you will need to replace the flame sensor.

Posted on Feb 15, 2019


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Posted on Jan 02, 2017



  • 625 Answers

SOURCE: Medallion Vermont Casting model CF9080

sounds like the regulator. there isn't much of anything left to go wrong! the gas comes out of a very small orifice in the burner tube and mixes with atmospheric air before being burned at the jet.

Posted on Feb 03, 2008


  • 67 Answers

SOURCE: Empire BF-30-1 Main Burner problem

flame sensor,just take some fine sand and lightly sand,it will be where the flame hits one of the burners,should look like a probe,if this helps please give me a fix ya

Posted on Jul 15, 2008


  • 1 Answer

SOURCE: laars lite 2 pool heater burner not lite

ive got the same problem and am fitting a new thermal generator i will let you know if it works

Posted on Feb 28, 2009


  • 139 Answers

SOURCE: Pool Heater Light main burner then goes out

take millivolt reads while main burner is on.i suspect you will see a drop in voltage until you get to point where it will no longer operate burner(around 200mv).if this is the case you probably have poor pilot characteristics due to dirty pilot,pilot out of adjustment ,obstruction or insufficient gas pressure

Posted on Jun 21, 2009



  • 2239 Answers

SOURCE: pilot stays lite but the burner wont ignite propane unit

the gas is not coming out of the burner, probably due to rust clogging the holes.

Posted on Dec 04, 2009

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sounds like the regulator. there isn't much of anything left to go wrong! the gas comes out of a very small orifice in the burner tube and mixes with atmospheric air before being burned at the jet.

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