Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble. . I& J. e0 w6 L6 C2 s9 q) j' q* O. ]4 ^% X& ~0 {! C( O
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.