Fix Fault Whirlpool

I have located the small screw heads under the fridge seal (which presumably hold the fridge door to the wooden door front metal fixings) and managed to turn some anticlockwise (I assume this is corre ... more

I've bought new doors for my Intergrated fridge. But I can't seem to work out how to remove it?

I have tried EVERYTHING TO ERASE THE BLACK SMOOTH SPOT ON MY WHIRLPOOL GLASSTOP STOVE BURNER. Can this be cleaned or corrected some way?