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Pump Troubleshooting
My unit lost power/shut off and GFCI is tripping
If water gets into the power strip mounted on your Modtub, the GFCI outlet may trip as a safety precaution. This can temporarily shut off your pump and chiller. Don’t worry, this is a common and fixable issue. Follow the steps below to get everything
Pump Humming or Running Intermittently
Pump Humming or Running Intermittently. If your pump is running intermittently, cycling on and off, or making a humming sound, your pump is in either Dry Run Protection or Stuck Protection as seen in the graphic below from the pump manual:. The Dry R