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Thread: Polaris booster pump troubleshooting

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    Polaris booster pump troubleshooting

    So, I turned off my Polaris 380 the other day to go for a swim, and afterwards, it wouldn't turn on. Seems to be getting power as I can sense a faint hum with it powered, but the pump doesn't run. So I guess step 1 is to crack open the pump housing and see if anything is jamming the impeller. But otherwise, anyone have suggestions for troubleshooting, and are there any tricks or advice for disassembling it?

    18000 gallon plaster pool, Pentair Triton II sand filter, Purex Triton Minimax Plus 300 gas heater, 1.0 HP two-speed Pentair Superflo, Polaris 380
    Caldera Marino hot tub, 360 gallon

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    Re: Polaris booster pump troubleshooting

    First, you should check to see if the motor shaft turns easily. You can do this by removing the back shaft end cover as shown in this video. If the shaft turns easily, then the next thing to do is to check that the motor is getting the correct voltage by using a multimeter. If the motor is getting the correct voltage, then the next thing to do is to replace the capacitor, which is the lump on top of the motor.
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