Grundfos Multilift MD1 - The Pumps Start Randomly

1. Check that the cable is connected properly at both ends.
2. If the problem is still not solved, replace the cable.
Use an ethernet cable, RJ45.
Related information
• 9.2.2 Cleaning the pressure tube and hose
12.12 The pumps start randomly
• No alarm
Cause Remedy
Automatic test run 24 hours af-
ter last operation.
No action necessary. It is a safety function that prevents the
shaft seal from seizing up.
Related information
• 9.2.2 Cleaning the pressure tube and hose
Multilift MD1, MDV | Fault finding the product| 44