While you wait for answers, we may have found some information which could help you.
Success
Message
Siemens brtrf keep LOSING connection?
How to use Siemens RWB7 central heating controller?
Room thermostat?
Have I got got a faulty programmer?
Thermostat not working?
Siemens RDJ10RF thermostat problem?
I cannot locate my Siemens receiver?
siemens rwb9 connections to boiler?
Thermostat issues- Siemens RDH10RF?
red flashing button siemens RCRIO/433?
Rdh10 & RCR10/443-GB by seimens?
How do i stop the time from flashing on the Siemens RDJ100RF?