Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble.2 x8 }4 I& |( S# X$ I+ J7 L1 x6 y) P4 G
$ Y* n$ Y7 Q2 ~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.