Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble. 2 Z# p! y8 x' W6 r ; Q- `8 T3 Y, G5 r3 b8 ?If 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.