We had liquid which reeked in the pan underneath the refrigerator which I assume is the defrost pan. We could not find out how to remove that pan as it was secured in several areas which did not appear to be reachable. We did vacuum it out but it was very difficult to clean. Where can we find instructions on how to remove and clean this pan? Also nothing inside the freezer appeared to have anything that leaked but it was definitely seafood smell, where would liquid come from?