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