So I replaced my doorbell bell yesterday, and there is a hole in the wall behind it (obviously) where the wires run through. That hole had cold air coming out of it as the A/C was on. The HVAC unit is in the attic and it has flexible ducts to each register in the ceiling. I don't really want to cool an entire interior wall, any idea on how to trace the leak? The ducts themselves don't run through the walls, so I am a bit confused. Thx via /r/DIY https://ift.tt/2NAGFTj
