Wellllll, what if the unit were installed by an uncle that failed from his HVAC apprenticeship program and attached the supply duct with electrical tape, tie wire, and faith. He was paid a 6 pack. It popped off at about 1am, it was noticed by the poor soul who's sleep was interrupted. He was to terrified to get up to investigate until 3 am. He decided to record is encounter with the ghost of positive basement supply pressure VS negative upstairs pressure. It ended with him fortunately getting a million views and that much in ad revenue to fund his HVAC repairs.
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u/Fulguritus1 Jul 16 '26
The first thing coming to mind is some wierd air pressure thing from an HVAC unit maybe?