I learned the hard way to unplug my stove during the summer months. We can get some pretty wicked thunderstorms here in NY and to lose power or get power surges is very common.
I'm going to try my hand at replacing a Triac. Might as well spend $7 on some parts than $270 on a new board
Well good luck and let us know how it works out. Power surges can do some strange things to electronics. I hope it is just the triacs.