We may have found other answers which could help you.
Click here for Heating Thermostat Battery
How to remove the front cover of my Digistat 2RF receiver?
Remote timer bps242rf how does it work ??? ?
Fan running continuously?
Replace a wireless termostat with a hard wired one?
Tybox827reset?
Can you get just a new RDJ10RF thermostat or does it have to be the set?