What is the most common reason a sump pump fails 60

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 or jammed float switch. Over time, debris, mud, or mineral buildup can prevent the float from moving freely, causing the pump to either run continuously or not turn on at all. That's why regular cleaning and testing of the float mechanism is key to avoiding a flooded basement.