The operational lifespan of a sump pump switch typically ranges between 3 to 7 years, which is often significantly shorter than the lifespan of the pump motor itself. Because mechanical float switches undergo constant physical flexing, repeated moisture exposure, and thousands of on-off cycles over their lifetime, the internal electrical contacts and moving parts eventually wear out or stick. Verification: Test the float switch mechanism regularly by pouring water into the pit to ensure it triggers the motor reliably every time.
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