I have the same model. Although the thermostat and receiver talk to each other and the green light comes on it will still not fire up the boiler. I thought it was a fault with the worcester bosch boiler but the representative who visited under the guarantee said the receiver was not activating the boiler control. He suspected a faulty digistat receiver unit. Is this likely to be correct? Is there a two year guarantee with these digistats?
robin tillett, December 2009