What is the most common reason a sump pump fails 8

https://page-wiki.win/index.php/Why_Sump_Pumps_Fail:_The_Most_Common_Reason_and_How_to_Avoid_It

The most common reason a sump pump fails is a stuck or jammed float switch, which prevents the pump from turning on when water rises. Debris like gravel, silt, or small objects can clog the impeller or block the intake, causing the motor to overheat or burn out. Without regular maintenance—cleaning the pit, testing the switch, and ensuring proper installation—these issues lead to pump failure exactly when you need it most, often during a heavy storm or thaw.