Neat Trick To Inspect AC Ducts Very Far Up

Redneck way of seeing into your AC duct work with things you have at home. Get creative, all you need is a broom handle or two, tape, and an old cell phone.

Three of my ducts are blocked off of the main duct at one joint. Apparently there is a damper in there or someone left the insulation over it when the installed it, not sure, all i know is its probably been that way since i bought the house and its 3 tiny ones, laundry room, master closet, toilet room. All easily unnoticeable until i started inspecting temperatures, there is 0 airflow on all three, they feed off the same branch, and not a single part is bent or damaged in any way.