Cause Remedy
There are signs of wear on the
impeller, pump, and casing.
Replace the worn parts.
The liquid level is too low.
• Check that the level sensor is set correctly.
• Depending on the installation type, add a means for priming the pump,
such as a foot valve.
If the problem persists, refer to the Flygt Service Guide on the web or contact the local
Xylem service shop. Always state the serial number of your pump when you contact Xylem,
see Product Description (page 12).
Troubleshooting
66 Flygt 3153 Installation, Operation, and Maintenance Manual
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