Hi all, my old central heating/ water programmer a landis & Gyr RWB 200 seems to now to of developed some faults especially the boost button. The system runs ok on continious but i think the clock is worn inside (it is now (18 years old). Can anybody reccomend a suitable replacement? I know the boiler has a pump over run does this change things? All Im after is a suitable replacement. Does anybody know whether a siemens RWB29 is compatible?
Thanks Mike.
Thanks Mike.