Applicable Systems
MAGNA1
Symptoms
Water hammer. A pressure surge has been detected in the system, indicating water hammer.
Possible Causes
- Rapid valve closure causing pressure surge
- Pump start or stop without surge protection
Troubleshooting Steps
- Step 1: Check the system for rapid valve closures
Valves are closing too rapidly - Step 2: Install surge protection or slow-closing valves
No pressure surges after installation
How to Reset
To reset: Install surge protection, then reset the controller.
Source: Grundfos Pump Troubleshooting Guide, Grundfos Group
Category: Pump