why sump pumps fail 11

https://whatismostcommonreasonsumpinfo.solsticebrief.com/posts/what-is-the-most-common-reason-a-sump-pump-fails-insights-for-homeowners

Sump pumps often fail because of a stuck float switch, which can get tangled in debris or simply wear out over time. Clogged intake screens from grit and sediment also block water flow, forcing the motor to overheat and burn out. Frequent short cycling, where the pump turns on and off rapidly, can also wear down the components, especially if the pump is too powerful for the pit or the check valve is faulty.