The left side of the bottom freezer door handle has recently become loose. I can see no way to tighten it from the outside, but the exploded diagram seems to indicate that the screws that attach it are indeed tightened from the outside. I tried to take the white inside plastic shell off the door to see how things worked from the inside, but the shell seems to be glued on. Any advice you can give me on how to fix this would be greatly appreciated. Thanks! John