Frig door does not stay closed - Sub-Zero 680 / F

When you say that it will not stay closed, what exactly do you mean? That the door seal does not meet the cabinet, that there is a gap? Is the door warped? Does it appear to be out of line with the hinges on the top and bottom? Is the space around the door when shut and looking at the front pretty much equal all the way around? I mean, when shut, does it appear that there is about 1/4 to 1/2 inch of the cabinet showing all around the door when shut? Has someone swung or leaned or tugged on the door, or closed the door or tried to close the door and something was keeping either the top or the bottom pushed out? There are adjustments on the hinges, at the attachment points to the cabinet and to the door itself. You may be able to adjust the hinge plates in or out and up and down to make the door seal better. And the box should be about half a bubble out of level, front to back, or with a slight angle front to back, in order to help the weight of the door seal to the cabinet of the refrigerator. If the door is warped, you may be able to determine which way it is bent, out at top, out a bottom, side to side, ect. and take it off the hinges and gently attempt to straighten this bend. If you are careful, and can determine there is warping at the top or bottom, you may be able to "straighten" the door while attached to the hinges. Gentle pressure is the procedure, GENTLE, GENTLE. Don't get the BIG HAMMER out and go to banging away. Just a push up here, and a tug down there, and you may be able to cure this fairly easy. You must first determine which way the door is warped, and then move it back the other way. It should seal the gasket to the cabinet, not so much attach the door to the cabinet edges, but a firm seal that takes a tug to open. And no air gaps. Are the products inside the refrigerator "sweating". This is the drawing of warmer room air into the cabinet and condensation forming. The door needs to seal in order to keep the cold air in, and the outside air OUT. I an extreme warping, you may have to replace the door, or use bungee straps to keep it shut. which will be a pain, removing those every time you need in it. I would try and determine where it may be bent or warped, and gently bend it back the other way a little at a time till I have the seal connecting all the way around. Once there, QUIT. No more bending. When the seal connects all the way around, you are finished. Problem solved. I wish you luck and hope that you can solve this fairly easy. Remember, be Gentle. It will warp easily. And no hanging on the door!