Guys, I really need some help on this one.
I thought the evaporator coil needed cleaning. When I got into the unit the coil was clean as could be. But, I was in there so I gave it a once over anyway and cleaned the drain pan but I still got the odor during defrost. When I discovered I needed to replace my ductwork I thought this would for sure take care of the smell but it did not. I only seem to get the smell during the defrost cycle. Any ideas? Let me know if you need anymore info and I'll try to provide it. Thanks in advance for your help.