What does 40 mean?

The warning and alarm symbol flashes red, the display shows error code E2, and the pump stops. This means the electrical supply voltage to the pump is too low.

• The power supply voltage to the pump is below the specified range.

Click steps to track your progress.

1. 1

   Verify the power supply voltage reaching the pump.

2. 2

   Ensure the voltage is within the specified operating range for your pump model.

3. 3

   If the voltage is stable, reset the alarm via Grundfos GO once the issue is resolved.