AC smell on 2004 Cadillac DeVille

each time I turn on the AC blower motor a musty smell come out of the vents not sure were the drain tub is any help.

by in Charlotte, NC on May 13, 2012
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1 answer
ANSWER by , May 14, 2012
something wrong with your AC, mutil di@g j2534 can diagnosis of cooling electronic.