What is the most common reason a sump pump fails

https://mywhatismostcommonreasonfinder.ironwoodscope.com/posts/what-is-the-most-common-reason-a-sump-pump-fails-a-home-inspector-s-take

The most common reason a sump pump fails is a stuck or jammed float switch, often caused by debris, a small object, or the pump shifting position in the basin. When the float can't move freely, the pump won't turn on when water rises, leading to flooding. Other frequent issues include power loss, a clogged discharge line, or an overwhelmed pump during heavy rain, but the float problem is the top culprit.