What is the most common reason a sump pump fails 22

https://sumppumpfailurestlouisnest.novacrestiq.com/posts/understanding-sump-pump-failure-st.-louis-homeowners-face-most-often

The most common reason a sump pump fails is a stuck float switch, often caused by debris or a misaligned float arm. This prevents the pump from turning on when water rises, leading to flooding. Regular visual checks and keeping the pit clean can help, but small plastic bits or hard water buildup are frequent culprits.