Richard & Rick,
Thanks for the insight. My furnace has no cover to remove to access air screw, (owners manual says it's there, but it's hiding!). I'll try replacing the igniter and see if that helps. My flame is blue, but not
as well defined as the picture in the manual. Any other input on air adjustment would be appreciated!

Roy

Richard L. Miller wrote:
 
> The same thing happened to my 1989 34 ft. Was told to replace the
> igniter. That was three years ago. It worked!!!! Furnace has been
> running a lot in our cold TX weather.
>
> Dicl Miller
>
> On Mon, 04 Jan 1999 08:53:41 -0600 Roy Frazier "rjfco@narrowgate.net"
> writes:
 

> >The furnace on my '89 29' Excella works great for a while (day or two)
> >and then the igniter gets cruded up. At that point, it fails to light.
> >If I remove igniter and clean, it works great for a couple of more days.
> >
> >I removed and cleaned unit this Fall and thought that would cure
> >problem, but "NOT".
> >
> >I can see the flame, it looks OK but I can't find the air adjustment
> >anyway.
> >
> >Help would be appreciated, 13 degrees F. today!