While you wait for answers, we may have found some information which could help you.
Success
Message
Siemans wireless heating controller battery usage?
Siemens brtrf keep LOSING connection?
my rdh10rf siemans thermostat will not send signal to my boiler. ?
Room thermostat?
Thermostat issues- Siemens RDH10RF?
Siemens RDJ10RF thermostat problem?
red flashing button siemens RCRIO/433?
I cannot locate my Siemens receiver?
siemens rwb9 connections to boiler?
Rdh10 & RCR10/443-GB by seimens?
How to use Siemens RWB7 central heating controller?
Have I got got a faulty programmer?