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musty odor from central ac system
how should a ac professional approach a call where customer says they have musty odor coming out of ac vents. i am a contractor and i have not had much experience at all with this type of complaint.is it the duct work ? is it a mold/ mildew issue? it certainly out of the ordinary call for me. i thought about maybe it is a evaporator being mildewy or even the duct work. i just dont want to be wacking away at something that i may not be able to cure. do they need a remediation company to evaluate?i have read other articles where evaporator is leaned but it didnt go away etc.it is a residential home with some age on the unit. i could check drainage and clean coil but if it doesnt solve it they are going to come back to me. i thought a duct cleaning would be a good start.i have only heard this compliant 2-3 times in my 8 years in contracting. i am use to mechanical issues but not this odor situation.any advice would be appreciated for future skills in thi matter......thx