E4 / Code 57 — Dry running detected

What does 57 mean?

The warning and alarm symbol flashes red, the display shows error code E4, and the pump stops. This indicates that water is missing in the system or the system pressure is too low, causing the pump to run dry.

• Water is missing in the system.
• The system pressure is too low.

Click steps to track your progress.

1. 1

   Fill the system with the correct amount of liquid.

2. 2

   Prime and vent the pump before attempting a new startup.

3. 3

   Press the 'Selection' button on the pump to attempt a restart after addressing the water level.

4. 4

   Reset any active alarms via Grundfos GO once the pump is primed and running.