Pentair NOCCHI DP 130/6 - Overload Protection Mechanism; Chapter 5: Maintenance and Troubleshooting Guide; Routine Maintenance Requirements; Problem Diagnosis and Solutions

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GB
Pump storage instructions, store the pump in a dry place and protect it from frost.
MAINTENANCE AND TROUBLESHOOTING
CHAPTER 5
Make sure the machine is disconnected from electric power supply, before performing maintenance
operation.
DANGER - ELECTRIC SHOCK RISK
PROBLEM POSSIBLE CAUSE REMEDY
THE ELECTROPUMP DOES NOT PUMP WATER,
THE MOTOR DOES NOT RUN
1) No electricity. -
2) Plug inserted incorrectly. Verify that voltage is present and that the plug is correctly inserted.
3) Enabled safety switch. Reset the safety switch.If the safety switch is once more enabled,
contact a specialised electrician.
4) Blocked impeller. Remove possible obstructions from the impeller.
5) Damaged motor or condenser. Contact the Customer Assistance Service.
THE PUMP DOES NOT SUPPLY WATER
BUT THE MOTOR IS RUNNING
1) Obstructed suction grid. Clean the grid.
2) Blocked check valve. Clean or replace the valve.
3) Air in impeller body (air bubbles). Perform several start-ups in order to remove all the air.
THE PUMP SUPPLIES A LIMITED AMOUNT OF WATER
1) Partially obstructed suction grid. Clean the grid.
2) Obstructed pipe. Remove the obstructions.
3) Worn impeller. Contact the Customer Assistance Service.
INTERMITTENT OPERATION
1) Solid particles prevent the free rotation of the impeller. Remove the foreign particles.
2) The temperature of the fluid is too high. -
3) Voltage out of range. Supply the pump in accordance with nameplate data.
4) The fluid is too dense. Dilute the pumped fluid.
5) Faulty motor Contact the Customer Assistance Service.
The plug of the power cable has a double grounding contact.
DP - DPV series pumps have a built-in thermal protection switch. The pump stops if an overload condition occurs.
The motor restarts automatically after it has cooled down (see point 4 of the Troubleshooting section for information on causes and
corrective actions). To start the pump, insert the plug in a 230 V alternate current socket.
The pump runs as soon as the floating switch reaches the start-up level.
In ordinary conditions, DP - DPV series electropumps do not require any maintenance.
It may be necessary to clean the hydraulics or replace the impeller.
GROUNDING
OVERLOAD PROTECTION
ATTENTION