Furnace won't stay lite. How do I fix this problem?
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it mite be the thingamajig
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@angusnra no!
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@eees888 no!
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That's easy, just replace your thermocouple for $12.
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@steff819 Check your Cad Eye. It proves the presence of a flame. If it gets dirty/oily/sooty it can not detect the flame and will shut the unit off. Just clean it.
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Buy a new furnace. I gaurantee the flames will stay on.
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flame sensor garenteed
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sand down the flame sensor, probably the problem!
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OMG...This is the problem with the internet....fools trying to diagnose and fix, who are not trained. some idiots talking about pressure switches....and jumping out limits.....It is obviuosly the flame rod......BUT only a fool uses sandpaper or emery board to clean it.....that will leave scratches and cause premature failure. green scotchbrite pad...only....not steel wool or anything else.also do not use dryer sheets in the vacinity of furnace...it offgasses chemichal which attacks flame rod...
BigBacardi1 3 weeks ago 4
@poopsmashed The gas valve wouldnt have opened if the pressure switch wasnt sensing induced draft. The unit lights and shuts down, thus indicating a faulty flame sensor.
It's the thermocouple.. Change it.
gstylez0107 3 weeks ago