Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble.0 @0 i: n) @+ f6 J9 s! i
5 U8 u& Z2 V$ M+ h9 `# ?5 G2 R# UIf 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.