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Installation, use and maintenance
16
NOISE LEVEL
Under normal operating conditions, noise emission of all models does not exceed 70 dB at a distance of 1
metre from the electric pump.
17
PROBLEMS AND SOLUTIONS
For any problems contact the authorised dealer nearest to you.
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
THE MOTOR IS NOT TURNING
Lack of electric power
Check the electrical connections
and the safety systems.
Impeller blocked
Check for possible damage or
obstruction of the Impeller
Motor problems
Contact the Service Department
THE MOTOR TURNS SLOWLY
WHEN STARTING
Low voltage in the electric power
line
Bring the voltage back within the
anticipated limits
LOW OR NO FLOW RATE
Low level in the suction tank
Refill the tank
Filter clogged
Clean the filter
High loss of head in the delivery
circuit
Use shorter piping or of greater
diameter
Low rotation speed
Check the voltage at the pump.
Adjust the voltage and/or use
cables of greater cross-section
The suction filter or the pipes are
blocked.
Remove the obstructions, as indicat-
ed in the chapter on Warnings
The impellers are worn or
blocked.
Change the impellers or remove the
obstruction.
The non-return valve is locked in
the closed position.
Check good operation of the valve
and replace it if necessary.
LEAKAGE FROM
THE PUMP BODY
Seal damaged
Check and replace the seal
