CrossRoads:
You think like maybe put magnet on the door handle, with reed swithc nearby, 2 wires back to the controller? That could be doable.
Yeah, you've got the idea. Although it really doesn't matter if the reed switch or the magnet is the part that moves with the door, as long as the magnet is close enough to engage the switch when the oven door is shut. I'd just go with whatever configuration that is easiest to implement.