Recent content by DaveU

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    AO Smith pump motor hums but won't start

    Thanks...I removed the motor from the pump assembly and it runs just fine immediately coming to speed smoothly and quietly. Upon further inspection, the O ring between the diffuser and volute assembly was stretched out of shape allowing water to enter the areas around the diffuser, impeller, and...
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    AO Smith pump motor hums but won't start

    Thanks Dave. I'll investigate this further.
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    AO Smith pump motor hums but won't start

    Five year old Century Centurion. The condition results in either tripping the circuit breakers or tripping the internal thermal switch which automatically resets after a cool off period (it makes the click noise). I have verfied that the capacitor is good. I removed the motor shaft end cover to...