You may need a duct cleaning. Yeah, there are times when things have fallen down that duct work or it's just built up that much dirt or dust. We had a customer one time that called us and said I'm not getting much airf flow and we ran a camera down their duct work only to find that their brand new duct work that was only a couple weeks old was full of drywall dust. The good news is a simple duct cleaning might be able to resolve a lot of those issues.
The bad news is duck cleaning is not free, but it is less expensive than a lot of these other issues that you could possibly have. You may need a duct cleaning. Yeah, there are times when things have fallen down that duct work or it's just built up that much dirt or dust. We had a customer one time that called us and said I'm not getting much airf flow and we ran a camera down their duct work only to find that their brand new duct work that was only a couple weeks old was full of drywall dust.
The good news is a simple duct cleaning might be able to resolve a lot of those issues. The bad news is duct cleaning is not free, but it is less expensive than.