Question about AO Smith 1.5 hp 3450rpm 56J Frame 115/230 Volts Hayward Northstar Swimming Pool Pump Motor - Electric Motor

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Engine knocking noises

Making knocking noises

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Impeller could be plugged?
Diffuser may have become misaligned and hitting the impeller?
May have sucked up some foreign debris?
Knocking could be a bad bearing.

Posted on May 18, 2014

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Posted on Jan 02, 2017

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