Grundfos · MAGNA3 Pump
The pump is receiving a signal from an external sensor that is outside the normal operating range. This could also mean the sensor has been removed but the analog input is still active.
Click steps to track your progress.
Verify that the electrical signal setting (0-10 V or 4-20 mA) in the pump's menu matches the external sensor's output signal. Adjust the analog input setting via the 'Assist' menu if needed (Page 34).
Check the external sensor cable for any signs of damage or wear.
Inspect the cable connections at both the pump and the external sensor to ensure they are correct and secure.
If the sensor has been removed, disable the analog input via the pump's 'Assist' menu, or replace the sensor with a working one.