Hi folks, newbie here! The problem I have is that neither the grill nor oven are heating up, the fan comes on, the temp light comes on and one of the cleaning modes appears to give some heating. I have checked that the clock is set and is not in any auto cooking mode and I have replaced the main element (before I discovered that the grill wasn’t working either!). Through reading around I’m guessing that this could be caused by either the Thermostat (least likely?), the TOC (thermal overload cutout) or an oven changeover switch, but how do I find out which it is? My oven is a Neff B1422N0GB/01 and I’d be really grateful for any advice/help. Cheers, Jon