OK, so I rewired it temporarily for 110v. The display worked fine, and I set it for 30 minutes. Figured the breaker would trip but it didn't. After 15 minutes, I checked the heating elements... no heat. The relay wasn't kicking on. Hit the oven temp button and it shows 499 degrees. I tried disconnecting the internal thermometer and the lower thermometer (I guess that's what the lower one is) and it made no difference.
Any ideas of what I can check on it? I'd hate to have it almost working and not be able to use it.