The oven stopped working at the weekend, the clock and timer works fine and the function light turns on when cycling through the modes, however when you turn the temperature knob after the initial click the light fails to turn on and the oven/grill do not work at all, neither of the fans kick in either. I looked on here and ordered a replacement ZN Limitor and have fitted that tonight, but still not luck. Anyone any ideas on what I can do next?? Cheers