Taking The Product Out Of Operation; Fault Finding The Product; The Pump Does Not Run; The Pump Runs Butdelivers No Flow - Grundfos SQF Manual Del Usuario

8. Taking the product out of operation

http://net.grundfos.com/qr/i/96547278
Related information
3.2.1 Lifting the product
5.1 Handling the product
5.2 Storing the product

9. Fault finding the product

DANGER
Electric shock
Death or serious personal injury
‐
Switch off the power supply before you start any work on the product.
‐
Make sure that the power supply cannot be switched on accidentally.
Fault finding and fault correction must be carried out by qualified persons.
Related information
4. Starting up the product

9.1 The pump does not run

Cause
The fuses in the electric installation are blown.
No power supply.
The motor protection has stopped the motor due to overload.
The pump or the submersible drop cable is defective.
Overvoltage or undervoltage has occurred.
9.2 The pump runs but delivers no flow
Cause
Low power supply.
The outlet valve is closed.
The non-return valve is stuck in closed position.
The inlet strainer is clogged.
The pump is defective.
Remedy
Replace the blown fuses. If the new ones blow too, check that the
electric installation was made correctly and that the submersible drop
cable is OK. If fuses keep blowing, contact a local electrician.
Check the power source.
Remove any blockage of the pump or the motor causing the
overload. Ensure sufficient power from the power source.
Check that the electric installation was made correctly and that the
submersible drop cable is OK. Contact the local service center
to repair or replace the pump or the submersible drop cable.
Restore correct power supply. Check the specified voltage output
from the power source.
Remedy
Ensure sufficient power from the power source.
Open the outlet valve.
Remove the pump from the borehole and clean or replace the non-
return valve.
Remove the pump from the borehole and clean the inlet strainer.
The pump needs repair.
19