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7 Troubleshooting <br />Cause <br />Remedy <br />There are signs of wear on the <br />Replace the worn parts. <br />impeller, pump, and casing. <br />The liquid level is too low. <br />• Check thatthe level sensor is set correctly. <br />• Depending on the installation type, add a means for priming the pump, <br />such as a foot valve. <br />If the problem persists, then contact a sales or authorized service representative. <br />Always state the serial number of the product, see Product Description on page 11. <br />Flygt 3102 Installation, Operation, and Maintenance Manual 69 <br />