Question about Aqua Flo Aquaflo Flo Master Xp2 Spa Pump 1.5 Hp Two Speed

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Hot tub pump will not run. Pump makes a click noise and hums but will not run, could this be a start capacitor gone bad

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  • Psiman Dec 13, 2008

    I have exactly the same problem and was wondering the same thing about the capacitor. Do you know if the capacitor is to start the pump or is it just for interferance?


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This can be one of three issues.
1.  Starting capacitor as you have suggested.  You can take the capacitor to a motor shop and have it tested or test it yourself if you have a meter that will check capacitance. 2.  Low/High voltage.  If the voltage is not at the proper levels (10% up or down) then the unit may have a hard time starting. 3.  Something might be binding up the impeller.  Disconnect the power and carefully check to see if the shaft of the motor spins freely. 4.  A short in the windings.  If none of these seem to be the problem, then you will probably need to replace the motor.

Posted on Jan 12, 2009

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Pump makes a humming sound but will not run

Don't run it hot or it will stop working.
Sounds like start capacitor has gone bad.
Copy following link for motor troubleshoot resources:
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