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Idiomas disponibles
Idiomas disponibles
Installation, use and maintenance
15
NOISE LEVEL
Under normal operating conditions, noise emission of all models does not exceed
74 dB at a distance of 1 metre from the electric pump.
16
PROBLEMS AND SOLUTIONS
For any problems contact the authorised dealer nearest to you.
PROBLEM
THE MOTOR IS NOT
TURNING
THE MOTOR TURNS
SLOWLY WHEN
STARTING
LOW OR NO
FLOW RATE
INCREASED PUMP
NOISE
LEAKAGE FROM THE
PUMP BODY
THE PUMP DOES NOT
PRIME THE LIQUID
THE HEAT SENSOR
ACTIVATES UNDER
NORMAL OPERATING
CONDITIONS
32 /132
POSSIBLE CAUSE
Lack of electric power
Rotor jammed
Motor problems
Low voltage in the electric power line Bring the voltage back within the an-
Low level in the suction tank
Foot valve blocked
Filter clogged
Excessive suction pressure
High loss of head in the delivery cir-
cuit (working with the by-pass open)
By-pass valve blocked
Air entering the pump or the suction
piping
A narrowing in the suction piping
Low rotation speed
The suction piping is resting on the
bottom of the tank
Cavitation occurring
Irregular functioning of the by-pass
Presence of air in the fluid
Seal damaged
Suction circuit blocked
Malfunction of foot valve fitted on
suction circuit
The suction chambers are dry
The pump chambers are dirty or
blocked
Operating fault
CORRECTIVE ACTION
Check the electrical connections and
the safety systems.
Check for possible damage or ob-
struction of the rotating components.
Contact the Service Department
ticipated limits
Refill the tank
Clean and/or replace the valve
Clean the filter
Lower the pump with respect to the
level of the tank or increase the cross-
section of the piping
Use shorter piping or of greater diam-
eter
Dismantle the valve, clean and/or re-
place it
Check the seals of the connections
Use piping suitable for working under
suction pressure
Check the voltage at the pump. Ad-
just the voltage and/or use cables of
greater cross-section
Raise the piping
Reduce suction pressure
Dispense until the air is purged from
the by-pass system
Verify the suction connections
Check and replace the seal
Remove the blockage from the suc-
tion circuit
Replace foot valve
Add liquid from pump delivery side
Remove the blockages from the suc-
tion and delivery valves
Contact the technical support..
M0217E
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