Check out the rubber ring ( or called door seal) to see if there is black mold build up inside the bottom rubble. 7 T$ |$ ^+ U8 F1 w7 n# w4 @$ [# I# B& R4 C# \' }
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.