Hi,

I suspect my Landis & Gyr RWB2 Programmer to be faulty as my HW is working fine but I have no CH. I have tested the room thermostat, pump and 3 way valve which are all working fine.

Does anyone know which contacts I can short on the backplate to bypass the programmer and see if the CH fires up to confirm if it is the programmer at fault?

Thanks

Rodney Garrett, May 2008

Did you find this answer, mine has just done exactly the same.

Barry, November 2008

how have you confirmed the room stat and valve are working fine if you suspect the programmer at fault?

are you getting power to room stat from programmer?

iain, May 2008