_RG_
Forum Supporter
Cast a jaundiced eye upon the thermoswitch. They're flakey little buggers and I've decided they come firmly under the note of "get what you pay for." I'd buy the cheapest one and replace it a year later. After getting highly skilled at replacing them I grudgingly pried loose a few more happy bucks for a good one and it's been joyfully switching for years now. Just another possibility...