Several common electrical and mechanical issues can cause a sump pump to stop working completely. Primary culprits include a disconnected power supply, a tripped GFCI outlet or main circuit breaker, a stuck or jammed float switch that cannot move freely against the basin wall, an air-locked pump housing, or permanent motor burnout from age and overuse. Additionally, a frozen or clogged exterior discharge pipe can prevent water from evacuating, stalling the system. Verification: Check the power plug, test the outlet, and inspect the float switch for movement obstructions.
1 votes
Marked as accepted