Pump stops, electrical error — Replace the pump

What does Electrical error mean?

If the pump stops and the first LED is red, the system has detected an internal electrical error. This indicates a fault that typically requires professional intervention rather than user-level troubleshooting.

• Internal component failure
• Circuitry fault within the pump
• Damage due to power surge or improper installation

Click steps to track your progress.

1. 1

   Switch off the main power supply to the pump immediately to prevent further damage.

2. 2

   Do not attempt to open or repair the pump yourself, as this may void the warranty and pose a safety risk.

3. 3

   Contact your supplier or a qualified Grundfos service partner to report the electrical error.

4. 4

   Arrange for a replacement pump through your supplier as advised by the manual.