Flotec MULTIPRESS 4S 50 LOGIC-SAFE Manuel D'utilisation Et D'entretien page 12

GB
To avoid problems, it is advisable to regularly check the pre-load pressure in the tank. At this point, disconnect the
pump from the mains and open the water supply to remove the pressure from the system. Then, measure the pre-load
pressure using the valve on the rear side of the tank. Perform the measurement with an independent pressure gauge.
Pressure should be equivalent to 1.5 bar. Correct the value if it is incorrect.
If the electropump is not going to be used for a long period of time (i.e. one year), it is advisable to empty it completely
(by opening the drain cap, see Fig. 1 n. 10), rinse it with clean water and store it in a dry location, where it can be
protected from frost.
PROBLEM
1) THE ELECTROPUMP
DOES NOT PUMP WATER,
THE MOTOR DOES NOT RUN
2) THE ELECTROPUMP
STOPS AFTER RUNNING FOR
A PERIOD OF TIME BECAUSE
ONE OF THE THERMAL
MOTOR CIRCUIT BREAKER
TRIPS
3) THE PUMP STARTS AND
STOPS TOO FREQUENTLY
4) THE ELECTROPUMP
DOES NOT REACH THE
DESIRED PRESSURE
5) THE ELECTROPUMP
DOES NOT RUN IN
CONTINUOUS MODE
If the problem persists despite the recommended corrective actions, contact the Customer Assistance Service.
10
POSSIBLE CAUSE
1) No power.
2) Defective condenser.
3) Shaft blocked.
4) Pressure switch installed
incorrectly or damaged.
5) LOGIC-SAFE enabled.
1) The power supply does not
comply with the data on the
nameplate.
2) A solid object is blocking the
impellers.
3) The liquid is too thick.
4) The liquid or the environment
are too hot.
5) LOGIC-SAFE enabled.
1) The tank membrane is dama-
ged.
2) No compressed air in the
tank.
3) The foot valve on the suction
pipe is blocked and not appro-
priately sealed.
1) The pressure required to stop
the pump pre-set on the pres-
sure switch is too low.
2) Air inlet from the suction pipe .
1) The maximum adjustment
of the pressure switch is
too high.
2) Air inlet from the suction
pipe.
1) Verify that voltage is present and that the plug has
been correctly inserted.
2) Contact the Customer Assistance Service.
3) Verify the cause and unblock the electropump.
4) Contact the Customer Assistance Service.
5) See Chapter 6.
1) Check the voltage on the power supply cable
leads.
2) Disassemble and clean the electropump.
3) Dilute the pumped luid.
4) Remove the cause of the problem, wait for the
pump to cool down and restart it.
5) See Chapter 6.
1) Have the membrane or tank replaced by qualiied
personnel.
2) Fill the tank with air using the delivery valve and
a maximum pressure of 1.5 bar.
3) Disassemble and clean the valve or replace it
when necessary.
1) Contact the Customer Assistance Service.
2) See point 2.2.
1) Contact the Customer Assistance Service.
2) See point 2.2.
5
GB
REMEDY