GT15 just Hums

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GT15 just Hums

Postby lwparchive » Fri Nov 09, 2012 4:25 pm

Hello, i just purchased a goulds gt15 (D1221007) from you. when i turn the power on to it, it just humms. the trouble shooting manual says it might be a stuck impeller but doesn't give instructions on how to fix it. Do you have any suggestions?

thanks, scott
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Re: GT15 just Hums

Postby dlamp67 » Fri Nov 30, 2012 4:03 pm

Sir,

You can check to see if the motor is locked or impeller is locked by removing the four bolts from the pump housing. Once the four bolts are removed, then remove the diaphragm and diffuser/guide vane. This expose the impeller. You should be able to turn the impeller by hand. If you cannot turn the impeller and you did not discover any foreign objects in the pump, then your motor is probably locked up.

Also, make sure you have the motor set to the proper incoming voltage and make sure there is no damage to the start capacitor.
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