Question: Why does the heating system not reach a sufficient temperature?


Possible cause of the fault

Automatic night set-back is active

The hydraulic conditions have changed. The pump must adapt to these.

When night set-back is activated

Switch on night set-back using Button 4 (for MAGNA, use Button 3).

In "AutoAdapt" mode

Possible cause of fault: The "AutoAdapt" function is unable to correctly adapt the heating system.


Switch off the pump for 5 minutes using the power switch on the electrical supply line (not the switch on the pump) and then switch back on.

Use Button 5 to cycle through the possible curves until "AutoAdapt" has been reactivated. The automatic setting may need up to a few hours to adapt to the system curve (for MAGNA, use Button 3).

If this measure does not lead to the desired outcome, the pump can be configured to (specific) curves.


Begin by using Button 5 to switch through the four possible proportional and constant pressure curves, and test each setting for approximately two hours. (for MAGNA, use Button 3 and if there is no increase in the heat supply, please call your specialist technician).

If no increase in the heat supply is detected:

Use button 3 to switch to Constant Speed II and test this setting for approximately 2 hours. If there is no increase in the heat supply, switch to Constant Speed Level III.

If there is no increase in the heat supply, please call your specialist technician.

Additional information:

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