I appreciate your interest. I first encountered the problem about a year ago. (10 years old). Put the new 250w fuse in and no problems. Lasted 6-8 months or so. Then went out again. Same process. Lasted 2-3 months. Again and again. Shorter periods until this time it only lasted 10 minutes.
Fuse appears to be gripped tightly (snug). GE told me I needed a new circuit board? Never could explain why the intermittant repair times. I was wondering if we could go to a larger fuse? I understand the hazards involved, but is there a zone we could operate in?