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PROBLEM
The pump leaks water.
The motor stops suddenly or the
thermal protector is activated
due to an overload.
The pump works below the no-
minal capacity.
The pump is noisy.
26
CAUSE
Poor mechanical seal of the shaft or the
O-Ring.
The inlet and outlet connections are
loose.
the hexagonal nut of the pressure relief
valve or the filter are loose.
The gasket or the O-Ring of the pressure
relief valve of the filter are defective.
Lime scale and mineral build-ups in the
pump have caused it to jam.
The pump and the motor are not aligned. Install the pump-motor joint.
The motor is defective.
The motor is connected with an incorrect
voltage.
The inlet is clogged even partially.
The pump rotates in the wrong direction. Check the motor.
The pump is not properly calibrated.
The motor runs at a low RPM.
The inside of the pump is damaged due
to the infiltration of foreign matter.
The pump and the motor are not aligned. Install the pump-motor joint.
The gasket or the o-ring of the pressure
adjusting screw or the filter is defective.
The joint, the coupling screw or the V-
shaped clamp, are loose.
The inlet is clogged even partially.
The hex nut of the pressure adjusting
screw or the filter are loose.
Maintenance manual for technical assistance
SOLUTION
Check the pump and take any cor-
rective actions.
Tighten the connectors.
Tighten the hex connection of the
pressure relief valve or the filter.
Replace the gasket and the O-Ring,
take care not to change the calibra-
tion of the pump.
Check the pump and replace it, if ne-
cessary.
Replace the motor.
Ensure that the power supply voltage
of the motor is correct.
Clean the pump filter.
Calibrate the pump.
Check the voltage or replace the
motor.
Replace the pump.
Replace the gasket and the o-ring,
take care not to change the calibra-
tion of the pump.
Align and tighten the components
which are loose.
Clean the pump filter.
Tighten the hex connection of the
pressure adjusting screw and the fil-
ter.
Manual code 10066574 / Rel. 2.00 / February 2012
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