As a kid, I was the reason that we had to have our ducts cleaned
My parents had such a hassle with our HVAC units as a kid.
It actually wasn’t the HVAC units themselves that had so much trouble.
Actually, the problem was that the would have to have their ducts cleaned for the furnace and the central air conditioner at least twice or three times a year. Whenever the HVAC units would start working, you would see dust begin blowing from the vents, and you would also hear a lot of rattling if the HVAC units were ever blowing at full strength. During the winter, the furnace would create an awful burning smell from things burning inside the vents. Eventually, so much stuff would get into the HVAC ducts that it would create a blockage that would prevent conditioned air from going into one of the rooms. The rooms always would be one of the kid’s rooms, and the HVAC technician would have to take it apart and clear the blockage. That was when my parents began to realize that we were the ones causing all of the HVAC troubles. Through a combination of dropping things in the HVAC ducts and poor cleaning habits, we were unintentionally causing all of the HVAC blockages and noises every year. When we would clean, we would sweep all of our stuff into a pile. Since we didn’t know where the dustpan was, we would sweep all of our junk into the HVAC vents. After a few months, we would begin having HVAC troubles. As soon as my parents found out, we all got spanked, but we never did it again!