AC dropped from ceiling to floor, now no blow
While gutting bus, I dropped the AC ceiling units to floor for panel removals. Prior to, each unit performed.
While on floor, i turn switches for power, i can hear a slight brief click / sound, unit never blows. Each unit does the same.
No visible wiring issue.
One other thing I've noticed, is when the dome lights were removed, they were just unscrewed. Worked prior to removal of ceiling panels, but not after, and again, no visible wiring issue.
I've attached a photo of dome light style used for reference.
Is it possible that lights were grounded by way of screw into the panels, maybe same with ac?