3
Before taking any troubleshooting action, disconnect the pump from the power supply.
lf there is any damage to the power cord or pump, any necessary repairs or replacements must
be handled by the manufacturer or his authorized customer support service. or by an equally-
qualified party, In order to prevent all risks.
The motor does not
start or makes no
noise
1)The motor is not powered.
2) There is no water (pump in
alarm mode)
3) The NRV is Blocked (pump in
alarm mode)
1) Check if power is supplied to the socket
and that the plug is correctly inserted
2) Check the water level
3) Clean the Valve
The pump delivers no
water
1) The suction grid or piping are
clogged
2) The impeller is worn or stuck
1) Remove the obstruction correctly sealed
and start the pump again.
2) 2) Replace the impeller or remove the
obstruction.
1) The suction grid is partially
blocked
2) The impeller or delivery pipe are
partially blocked or encrusted.
1) Remove any obstructions
2) Remove any obstructions
The pump stops
running (possible
intervention of the
thermal overload
switch)
1) The liquid to be pumped is too
dense and overheats the motor.
2) The water temperature is to
high.
3) A solid object is blocking the
Impeller.
4) Power supply doesn’t comply
with the data on the name plate.
1-4) Disconnect the power cord, correct the
reason causing the overheating, then wait until
the pumphas cooled, plug the cord back in
and resume operation.
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