Search results

  1. L

    Vaillant ecotec 831 and wireless thermostat VRT350 problem

    Apologies but I am not understanding exactly how you do this, as I am not completely familiar with what EBUS is, does this mean that the radio link is disabled so that the boiler and programmer are wired together. Currently my programmer is attached to the wall half way up the stairs as a...
  2. L

    Vaillant ecotec 831 and wireless thermostat VRT350 problem

    Also I am aware that this could be caused by RF interference, I brought in from the garden an electronic temperature sensor which has a radio link to an indoor display, which transmits a signal at 433Mhz! just wondering if this may be what triggered the heating to fire up!
  3. L

    Vaillant ecotec 831 and wireless thermostat VRT350 problem

    Hello. I have just started having the same problem only yesterday, heating fired up when the controller was set to summer mode. I reduced the temperature setting on both the night set back and the daytime to around 10c although the actual temperature of the room was 22.0c. So I switched off the...
Back
Top