: Use the dial or buttons labeled with a tap icon to set the temperature between

: If the pressure is low, open the filling loop valves (usually blue or black handles under the boiler) until the needle reaches the correct range, then close them tightly.

: Press the AUTO button to allow the boiler to automatically optimize its output based on external and internal sensors, providing maximum comfort and efficiency. Maintenance & Troubleshooting

: If the boiler displays a lockout error, turn the main dial to the Reset position for a few seconds, then back to the desired mode.