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suzzarablue side pro/basic
Translated from Italian
16 TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
THE MOTOR IS NOT TURNING
Lack of electric power
Check the electrical connections
and the safety systems.
Rotor jammed
Check for possible damage or
obstruction of the rotating com-
ponents.
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
Foot valve blocked
Clean and/or replace the valve
Filter clogged
Clean the filter
Excessive suction pressure
Lower the pump with respect to
the level of the tank or increase
the cross-section of the tubing
High loss of head in the delivery
circuit (working with the by-pass
open)
Use shorter tubing or of greater
diameter
By-pass valve blocked
Contact the Service Department
Air entering the pump or the suc-
tion tubing
Check the seals of the connec-
tions
A narrowing in the suction tubing Use tubing suitable for working
under suction pressure
Low rotation speed
Check the voltage at the pump.
Adjust the voltage and/or use
cables of greater cross-section
The suction tubing is resting on
the bottom of the tank
Modify tubing properly.
Freezing of the pump or motor.
Thaw the pump and check for
damage. Starting a frozen pump
can cause damage to the motor
and to the pump itself
Leaks in the pump outlet pipe.
Check the seal at the pipe's con-
nections and inspect the pipe for
possible damage.
Failure to prime
fill the suction hose with deminer-
alised water
INCREASED PUMP NOISE
Cavitation occurring
Reduce suction pressure
Irregular functioning of the by-
pass
Dispense until the air is purged
from the by-pass system.
Presence of air in the liquid to be
pumped.
Verify the suction connections
LEAKAGE FROM THE PUMP
BODY
Pump damage
Contact the Service Department
