The one combi-steam oven that has height restrictions is the plumbed Gaggenau version: it needs to be at countertop height for its gravity drain to work if connected to conventional sink plumbing. The restriction does not apply if you can run the drain hose down through the floor to plumbing underneath. Gaggenau has announced a non-plumbed version but I don't know its ship status. Miele currently makes steam only, no convection, no plumbing.

When the oven door is open you can look down at the hinge plates that the glide ride on only when the door is almost closed. You'll see the plates have a valley and two slight 'peaks'.

I've had my Bluestar for 2+ years. I've removed the oven racks and their guides and taken the oven floor out and cleaned them with Barkeepers friend. I don't use the 'green' nylon scotchbrite pads because they will scratch my pans, although for the oven racks I do. I use a blue scrubbie pad and maybe some Barkeeper's Friend if I have a stain on the sides of the oven, but usually it's just a wipe down. I don't normally like having harsh cleansers around, but the other day, I just about destroyed a new Le Crueset enameled French oven. The inside was baked with olive oil at 500+ degrees. So I reluctantly bought some Easy Off, No Fume oven cleaner and sprayed it on this sad French oven, and then set it outside. Four hours later the burnt oil lifted right out. My point is, I guess if I really do something nasty to the oven, this stuff should get it off, and it's not as caustic as the regular oven cleaner. BTW, the oven does a great job baking bread. I also use my broiler and it works great.

I know that they are removable. No tools are involved. You flip a lever down above the hinges and somehow the door comes unhooked. The appliance repair guy did it, but I wasn't paying close attention. This may be what's wrong. I'd call my dealer or Bluestar directly. If it defective, you'll want to get parts and or service going. Good luck.