How do I access the thermostat's technical parameters menu?
Open the back cover of the thermostat and access the buttons on the board on the front cover. Rotate the button and wait for the LCD screen to start flashing, then press and hold for 3 seconds and the LCD will display P01. The parameters should only be adjusted by professionals.
From the official Bosch RT20 Rf Room Thermostat manual, page 26
Have a follow-up question?
Answers from the official manual.
Common questions