Hi I have a Siemens HB70550B Single Electric Oven. Had it for just over 3 years and came home from work and noticed the clock was off. I checked the cooker switch on the wall and the little orange light was still on meaning the main fuse in the consumer box was still okay. I switched off and on again to see if that resets it, but nothing. Non of the cooking functions work either, the oven is dead. I think the unit is hard wired into switch with no fuse in between, so just like to know is the oven really kaput or is there an onboard fuse that needs checking? Whichever way I'll need to pull the thing out, right? Cheers R.