Jenn-Air stove problem (by 2 users)

I had a Jenn-Air of the same vintage (I don't know where they got their
reputation for quality).  I found two causes of low or no heating:

1.  The elements weren't firmly seated - sometimes I could fix it by
pulling the elements out and reseating them.  Spreading the two contacts
of the element and/or wiggling would often fix it.

2.  I also found that the flat plug contacts for the two-burner modules
(the whole assemebly lifts out) had arced and become pitted.  On one, I
was able to fix it by filing it smooth and then sanding with carbide
paper.  The other was too far gone, and I had to replace the plug and the
socket it plugged into.