Fix Fault Siemens Rwb7

Recently acquired new house. Old boiler with Siemens RWB7 central heating controller. Have no instructions for its use.

Where can I obtain a schematic circuit diagram or service manual for a Siemens (Landis & Staefa) programmable timer RWB7 or RWB27Si

Diagramme to show external wire connections to connect fixed wiring to siemens rwb7, should pump be connected to terminal 2?? should live 240v be looped to terminal 2. I can get my hot water to come ... more

I have had to replace the main timer on my central heating system. I have gone for a siemens RWB7 electronic timer, the system will still not activate (boiler is fine). The only thing I can think that ... more