Several weeks ago I turned on my oven to preheat it. Some 15 minutes later
I returned and it was cold. I finally checked the 40 A double-breaker and
it was tripped. I reset it and the oven worked ok. I've used the oven since
several times with no problem Can I stop worrying about it? I've never had
a breaker trip like that for no reason before.

TIA


--
"Where there's smoke there's toast!" Anon