Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble.* ^8 \5 a+ I! i# o# p
) p6 |4 _9 N" Q; P5 P7 zIf it does have mold and can not be wipe out, then you have to change out the whole seal.. I bought a new seal and changed out few weeks ago.