oven issues..
For some reason, Norge formed there oven liners with sharp ridges , these are almost like finger width depressions that run around the lining ,there are two of these, front and rear, the problem is I think, the expansion and contraction at these points is different than the rest of the oven as these formed ridges are the thinnest part of the lining, so then, the porcelian cracks off at these points,also since these are depressions rather than raised ridges, any spilled liquid naturally gets in them first, the result being rust, the big oven has 2 hairline cracks in the depressions and the small oven has a dime sized hole where a sheet metal screw holds the bake element as it is hinged on one side and tilts up to clean...if they had not had this bad design I believe there would be many more of them around, as in all other respects they are built like a tank.