If all that was done was to vacuum the plenum area without removing the
burner, I sincerely doubt that it was that effective. It is no job to remove the
burner and clean it. The burner is made of cast iron and over the years, due in
part from condensation and partly from moisture present in most propane, will
rust the orifices. The orifices are simply slits cut in the burner and it is
really quite simple to clean them. I used a hack saw blade to clean mine, and it
made as huge difference in the adjustability of the flame. Good luck
Pat 77 Birch
> I have a 76 PB with the original furnace. When it comes on, it sort of
> flutters or slightly rumbles. If I turn the thermostat down and then back
> quickly, everything is fine (no flutters). I have adjusted the screw on the
> side under the seat while looking thru the sight hole, but the flame still
> has some yellow at times. I took it to a RV repair shop and he vacuumed the
> furnace thru the exhaust hole and adjusted the flame again. I tried it when
> I got home......it still flutters and set the CO alarm off. Is there
> something I can do besides replace the unit? I'm open to all suggestions.
> Thanks for your help. Don R.......76PB
burner, I sincerely doubt that it was that effective. It is no job to remove the
burner and clean it. The burner is made of cast iron and over the years, due in
part from condensation and partly from moisture present in most propane, will
rust the orifices. The orifices are simply slits cut in the burner and it is
really quite simple to clean them. I used a hack saw blade to clean mine, and it
made as huge difference in the adjustability of the flame. Good luck
Pat 77 Birch
> I have a 76 PB with the original furnace. When it comes on, it sort of
> flutters or slightly rumbles. If I turn the thermostat down and then back
> quickly, everything is fine (no flutters). I have adjusted the screw on the
> side under the seat while looking thru the sight hole, but the flame still
> has some yellow at times. I took it to a RV repair shop and he vacuumed the
> furnace thru the exhaust hole and adjusted the flame again. I tried it when
> I got home......it still flutters and set the CO alarm off. Is there
> something I can do besides replace the unit? I'm open to all suggestions.
> Thanks for your help. Don R.......76PB