Smart Thermostat - heating does not start

Hi. I have installed the Smart Thermostat as per instructions. I have an oil fired Worcester boiler.

Boiler is on constant. Thermostat clicks for demand, but pump does not start.

Any idea's please?

Thanks very much.


  • Impossible to say with the lack of detail. Suggests it’s not wired correctly.

  • GrayDav4276
    GrayDav4276 ✭✭✭
    edited February 2021

    Sounds like the installation isn't completed happens a lot.