Mikey
Aspiring Old Fart, EE, computer & networking geek
"A bit loose" is still "loose". I'm betting that when you moved the breaker, you tightened this screw, and that fixed the breaker-tripping problem. The oven-shutting-off problem is probably a bad element or connection.The upper screw on the breaker has some browning around it, but very little. It was a bit loose.