oven not working

Hello forum, My daughter sneaked up in the night, used the oven, left it on, circa 70 degrees. Now nothing really works - the hob plates do get slightly warm, and the indicator lights aren’t working properly. Any ideas where to start? I could upload an appliance circuit diagram later, if that...

Hi, my logik fan oven isn't doing anything. I've tested the temperature gauge and I think it's ok as I get 0 ohms when its clicked on. I wonder if it might be the switch ? Not sure how to rest it as there are several connections. Of it anything else could cause it to do nothing ? Thanks