The LORENTZ S1-700 system uses centrifugal pumps. Unlike positive displacement pumps, centrifugal pumps require a minimum motor speed to overcome the total dynamic head (TDH) and start delivering water.
If the available power is not enough to reach this minimum speed, the flow rate shown in the app would be "0 m³/h" and no water comes out of the pump.
This is normal behavior for centrifugal pumps and does not generate a fault or error message in the S-Connect app.
What can be observed in this situation?
- The pump is running with a motor speed greater than 1000 rpm.
- Flow rate shown in the app is 0 m³/h.
- Probably no water is delivered.
- No fault or error message is displayed.
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Troubleshooting
| What does the App show? | Behaviour of the LEDs in the controller | What is happening? | How do I troubleshoot the event? | What happens next? | |
| LED Green | LED Red | ||||
| Flow rate shows
| Solid | No light |
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| Solid | No light |
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