The user display on this appliance incorporates all the controls usually found on the front of an appliance i.e. the ability to turn warm start (preheat) on and off, the heating on and off, select DHW and CH temperatures and many other features.
To activate the display any button can be pressed, the display is active when it illuminates bright blue. If no button is pressed the display automatically deactivates after 60 seconds.

Observation:


                                                                                                                        Warm start is active when "C" is displayed
Press "OK" to confirm settings
BEFORE CONTINUING ENSURE WARM START FACILITY AND HEATING ARE TURNED OFF
Note: Even if a fault code is shown in the display the DHW and CH settings can still be adjusted.