My oil furnace became undependable and getting someone to fix it was a major undertaking, because furnace service guys don't seem to understand female-speak.
For a while I lived with pushing the red button, and because the points were obviously bad, nothing would happen. So, I'd take off my shoe and whack the starter. This would ignite the oil and create a small explosion but the thing would run...until it shut off again.
Finally, I quit using it altogether and went to burning coal, because the furnace guy either couldn't wrap his head around what I was saying about points, or felt the job was too complicated to bother. These guys seem to be missing an important part of their thinking mechanism. Must be from the fumes.