Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble.& B# @) G1 X+ s: O1 ~1 a/ O6 ?3 V
" Y% c& ?. w* ^0 B& s1 C) [! nIf 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.