41
8.7
Any pump faults and possible solutions
LED colour
Pump status
Fault
Possible solution
Red-Green
flashing
"Transient safety shutdown";
Anomaly in progress
After eliminating the anomaly,
the pump restarts automatically
Network voltage too high or too low;
(160V > Vn > 280V)
- Check network voltage
Motor overload; rotor friction or blockage
due to the presence of debris
- Check the characteristics of the system
water; clean the system of any debris
Excessive speed; the pump rotor is actuated
by an external factor and is rotating at a
speed exceeding the maximum permitted
speed
- Check that there is no external flow in the
system (no other pump in operation)
Overcurrent; stator winding is in short
circuit due to water
- Check for leaks in the system
The temperature inside the motor is too
high
- Check the water temperature in relation to
ambient temperature
The pump is obstructed by an external flow
(> 1200l/h) in the opposite direction
- Eliminate or reduce the external flow (<
1200l/h)
Flashing red
"Permanent safety shutdown"
Pump blocked due to debris in the system
- Remove and reconnect the electrical
power supply (OFF - ON)
Fault in the electronic board and/or the
motor
- If the "red LED" continues to flash:
- REPLACE THE PUMP
LED off
Stationary
No electrical power
- Check the electrical power connection
LED faulty
- Check if the pump can operate
Electronic board faulty
- REPLACE THE PUMP
