Olivia

Gave that a go. I isolated each one, disconnecting the others completely. Same result. When the switched is turned on, even to low, the breaker immediately trips. I wonder if it’s worth buying one new switch to test.

Thanks for the reply. It has 2 elements per switch, and 3 switches. I’m also not convinced it’s the switches, but I’ve triple checked the wiring and it seems correct. I bought it from someone who was storing it outside I believe, and they weren’t sure when it was fired last. I think I need to buy a multimeter to find the short.

Hi! I bought an old kiln. It looks really good, barely used. It’s an Estrin kiln. 240v, single phase, 25 amp. I have it wired from a 30 amp breaker. When energizing the lines (plugging it in), everything is good. There are 3 infinite switches and a kiln sitter. The moment any one of the infinite switches is turned on the breaker trips. To troubleshoot, I bypassed the kiln sitter, but the breaker still trips. Since it instantly trips, I think it’s a short somewhere, but I inspected all the lines. Everything looks good. Do faulty infinite switches act like this when they fail? Or should I keep looking for a short somewhere?