[VAC] Refer Help

["Judy Langer" <farreach@xxxxxxxxxxx>]

I have a 1966 vintage Dometic that works great in the electric mode, but not
at all in the gas mode. The flame looks healthy, starting blue and going to
white/yellow. I can feel heat at the top of the chimney on the unit, so it
doesn't seem blocked.
Does anyone know what can cause this condition? And does anyone know how to
fix it?
Thank you,
Rick Langer
'66 GT, #3847,VAC,TCT