Stormwater Trmt Measure Amdt 1 11032020

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7 Troubleshooting Cause Remedy The installation is not receiving Check that: voltage. • The main power switch is on. • There is control voltage to the start equipment. • The fuses are intact. • There is voltage in all phases of the supply line. • All fuses have power and that they are securely fastened to the fuse holders. • The overload protection is not tripped. • The motor cable is not damaged. The impeller is stuck. Clean: • The impeller • The sump in orderto preventthe impellerfrom clogging again. If the problem persists, then contact a sales or authorized service representative. Always state the serial number of the product, see Product Description on page 11. 7.3 The pump does not stop when a level sensor is used DANGER: Crush Hazard Moving parts can entangle or crush. Always disconnect and lock out power before servicing to prevent unexpected startup. Failure to do so could result in death or serious injury. t WARNING: Electrical Hazard The permanent -magnet motor generates voltage when the shaft rotates, even if power sources are disconnected. Never perform any electrical work if the shaft could rotate. Cause Remedy The pump is unable to empty the Checkthat: sump to the stop level. • There are no leaks from the piping and/or discharge connection. • The impeller is not clogged. • The non -return valve(s) are functioning properly. • The pump has adequate capacity. For information: Contact a sales or authorized service representative. There is a malfunction in the level- • Clean the level regulators. sensing equipment. • Checkthe functioning of the level regulators. • Checkthe contactor and the control circuit. • Replace all defective items. The stop level is set too low. Raise the stop level. If the problem persists, then contact a sales or authorized service representative. Always state the serial number of the product, see Product Description on page 11. 66 Flygt 3102 Installation, Operation, and Maintenance Manual