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Old 11-20-2010, 07:18 PM   #1
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Armstrong Furnace Burner Cutout


Armstrong Furnace Ultra 80 Burner Cutout

It's cold in shy town and the furnace keeps cutting out, and on top of it, it needs to be re-set to start - ouch!!!

Furnace ignites well, all five burners turn on, runs for 30 seconds to a few minutes then, it shuts down, and the process starts over

Tried to jumper the pressure switch, same problem, maybe it last longer

Now it when it shuts down, I have to push the re-set button for it to re-start

Could it be a dirty sensor?, why would this require the unit to be re-set

I had to push re-set when I starved the furnace, by closing the doors to the small room the furnace sits in, worked fine after I re-set and kept doors open

Any ideas would be welcome...

Tcar

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Old 11-20-2010, 08:08 PM   #2
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Armstrong Furnace Burner Cutout


What reset button are you pushing? Sounds like a flame rollout limit. This could be a dangerous situtation. Post pics of what you are resetting.

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Old 11-20-2010, 10:17 PM   #3
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Armstrong Furnace Burner Cutout


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Old 11-20-2010, 10:26 PM   #4
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Quote:
Originally Posted by tcar View Post
I had to push re-set when I starved the furnace, by closing the doors to the small room the furnace sits in, worked fine after I re-set and kept doors open

Tcar


How small is the room ?? Maybe starving the furnace for combustion air
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