3 ways a DDR arcade arrow could be "dead"

[@Just_a_space_cowboy]

I need to buy more andimiro sensors so i have some spares.

[@KRAMPIU]

Is this similar for pump pads?

[@dannyboyk2]

Yes! Pump pads (both old-style with corner brackets and new-style bracket-less with screws that go directly through the arrow panels) have functionally-identical parts inside, so the same problems can occur.