Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble. 1 O7 ^7 Y) [$ W7 _4 n' u9 J8 A- P1 h- N1 x9 l% b
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.