What is the most common reason for sump pump failure?

8 Answers

  • 3 weeks ago

    failure of non return valve,

    consequently require priming.

  • 3 weeks ago

    The sump gets full of junk and clogs the inlet screen.

  • Bob
    Lv 7
    3 weeks ago

    The split phase capacitor in the pump ages and looses it's capacitance, the pump then lacks the torque to start. The shaft seal may leak and allow liquid ingress leading to bearing failure and earth faults, or it could just get jammed by a large piece of debris in the impellor.

  • 3 weeks ago

    The most common cause of sump pump failure is a power outage. Sump pumps depend on your house for power, and blackouts can be problematic.

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  • 3 weeks ago

    Corrosion or switch failure

  • 3 weeks ago

    Water leakage through valve,gasket and bearing after working a certain period. Do a routine overhaul maintenance to it can avoid failure.

  • 3 weeks ago

    The float gets stuck in the up position so the pump keeps running when there is no water in the sump. No water, the pump over heats and burns out. Make sure the float is free and there is no way for it to stick.

  • 4 weeks ago

    Mechanical wear.

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