We may have found other answers which could help you.
Click here for Rf1 Drayton Wireless Thermostatdrayton room thermostat display screen is blank?
Drayton Digistat RF2 Wireless system?
how can i fix thermostat?
Help to fix a room thermostat, please?
drayton digistatrf1 wireless system?
Drayton Digistat +RF Model RF-601?