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Posted by Heathcliff on January 16, 2007, 6:11 pm
BSAKing@hotmail.com wrote:
> I just went rhough this on my Amana furnace. Cleaning the flame sensor
> did the trick and stopped it from going into lockout with the fan
> running constantly.
>
> Cheri wrote:
> > diyme wrote in message ...
> > >
> > >furnace exhaust fan turns on... then the heating element lights up....
> > >then the gas ignites breafly and then gas shuts off..then the fan stays
> > >on and it starts the process all over until it lights. most of the time
> > >it lights on the second time.
> > >It does not do this all the time but more then we like.
> > >Why is this happening?? Can we fix this or do we need to call someone?
> > >Goodman installed in late 1998.
> >
> > The tech told me yesterday that the fan would always run, even if the
> > burner doesn't stay lit. Sometimes with mine, the fan would run for an
> > hour or so, blowing cold air, before it would light and stay lit. I
> > would only know that happened when it started getting warm in the house.
> > I'm having mine fixed in the next couple of days when the parts come in,
> > so if I learn anything about my problem, I'll post it and maybe it will
> > help you.
> >
> > Cheri
I just went through this too. The flame sensor, if it's like mine, is
a little rod that pokes into the flame area, with a wire connecting it
to the control module. You can see some by googling flame sensor so you
know what you're looking for. Apparently carbon buildup can make it
not operate correctly. Turn off power to the furnace and remove the
flame sensor, and clean the rod with some fine steel wool. The trick
here is thoroughness, go at it with the steel wool for like 15 minutes.
Good luck and post back if it works. -- H
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