Question about Heating & Cooling
Flame sensor could be dirty. It is located right beside the last burner looks like a thick piece of wire. Take steel wool and gently clean the probe 4 or 5 strokes is all it will take to take off the carbon build up off. Lets eliminate this item and see if it clears up okay. ken
Posted on Dec 21, 2008
Posted on Dec 02, 2009
SOURCE: armstrong ultra sx 80 furnace
You have a dirty flame sensor. Look at the very last burner and you will see a wire going to a ceramic sensor and it looks like a thick wire. Take some steel wool or fine sandpaper and clean the surface off and it will work like a champ.
Let me know how it goes ken
Posted on Apr 15, 2009
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Posted on Jan 02, 2017
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