1. Enter the menu screen by pressing the eco and info buttons simultaneously until "M1: Benchmark Menu" is displayed.
2. Press the DHW up arrow until the required menu (M2 or M3) is displayed then hold down the eco button until the display changes.
3. Press the DHW up arrow to access required parameter, press eco. Display should then flash.
4. Press the DHW up / down arrow until parameter has been altered as required and then press eco, a tick should be displayed to confirm the parameter is now changed.
5. Exit menu by pressing info button repeatedly until boiler shows the flow temperature.