Real-time clock out of order (157) - Internal clock malfunction

What does 157 mean?

The pump's internal real-time clock is not functioning correctly. While this does not affect immediate pump operation, it will impact any scheduled operations that rely on the clock.

• An internal component failure related to the pump's clock mechanism or battery.
• A software glitch affecting the real-time clock function.

Click steps to track your progress.

1. 1

   Connect to the Grundfos GO Remote app and check for the warning code 157 under 'Alarms and warnings'.

2. 2

   If scheduled operations are critical for your system, consider if the pump needs to be replaced.

3. 3

   Contact Grundfos Service for advice on this specific internal fault.

4. 4

   The manual suggests replacing the pump if the issue cannot be resolved, especially if scheduling is essential.