While you wait for answers, we may have found some information which could help you.
Success
Message
siemens rwb9 connections to boiler?
Siemens RDJ10RF thermostat problem?
Help?
How to use Siemens RWB7 central heating controller?
Siemens brtrf keep LOSING connection?
red flashing button siemens RCRIO/433?
Have I got got a faulty programmer?
Thermostat issues- Siemens RDH10RF?
Can I move the thermostat to another room?
I cannot locate my Siemens receiver?
Siemens rdh10rf thermostat?
Room thermostat?