ENGLISH
20
9. TROUBLESHOOTING
9.1 The motor does not start.
Check the LEDs (yellow-green) on the side of the Hydrodriver:
Indication
GREEN LED
Indication
YELLOW LED
Inverter Status
Remedies
ON ON
Mains voltage on, the converter is
not working (STANDBY)
−
Ensure that input control A is
on.
flashing
flashing
Limit current alarm
−
Carry out maintenance to
free the impeller.
−
Change the bearings of the
electropump if worn.
flashing ON
Excess temperature in the
converter (internal PTC)
−
Check the Environment
Temperature.
−
Check the ventilation
between the motor and the
Hydrodriver.
−
Check the ventilation on the
Hydrodriver itself.
OFF ON
Other faults (e.g. emergency
release)
OFF
flashing
Low mains supply voltage
−
Check the supply voltage.
OFF OFF
Fault in the mains voltage
(e.g. faulty external switch)
−
Check the connection
between power mains and
Hydrodriver.
−
Check the switches, the
insulating switches or fuses
that may have tripped.
9.2 The electropump continues to delivery.
Inverter Status
Remedies
The pressure transducer (H) is faulty.
−
Chang the transducer.
The transducer connections are interrupted.
−
Restore the connections as in the diagram.
9.3 The Economy function does not respond.
Check the connections and the control “C”.
9.4 The electropump rotation function does not respond.
Check the connections and the digital control “B”
