We have done a lot of early spring camping this year, and its been chilly, so we have had to use the furnace more than every before. I have a problem with the ignitor points carboning up, some times after every use, to the point that the furnace wont light. I have to pull and clean the carbon off the points, then it works fine. Can someone tell me why, and what I can do to prevent it?
1979 SLY 31'
1979 GMC 4 door with s/c camper shell