Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble. + n3 g4 T2 I; ?# O0 q3 P5 J$ Z3 w2 C0 `9 r0 V' n2 Z- L, l
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.