Thanks a lot for your reply. Are you saying that the other models listed in that link have the same seal and will work for my fridge?
Actually I didn't check the hinge side of the door, just the handle side, but it seemed pretty loose in places. From what I've read I think I also need to pull the fridge out and take the rear panel off to check for dirty or dusty coils. I wouldn't be surprised if the fridge is not level either, so I'll check for that too.
Thanks again for your time.