Oven stays on

Came home from vacation to find the oven had been on for some time. The display lights up but is unreadable. The burners will turn on/off, but as soon as you turn the breaker on the oven comes on. I tried turning the breaker off over night, but same symptoms. Color is biscuit. I assume it is the control board AP4097464 how can I confirm?

Sounds to me like a stuck relay on the control board (Clock). Here’s the part number: [part]AP4099246[/part]