can i reset my worcester dt10rf programmer as after changing batteries none of the buttons work and it is locked. my boiler is now on even though i have set it to off. please help

Maxine, March 2023

From the manual:

If at any time during the programming you get confused and would like to start the procedure from the beginning press the “SELECT” and “–” buttons at the same time and hold for two seconds. This resets the Digistat to the factory pre-set times and temperatures

https://www.worcester-bosch.co.uk/support/literature/download/8716115494

Eheidi, March 2023