Boiler not firing - Tado calling for heat

I’ve installed my Tado thermostat and extension kit correctly and followed all the steps to the letter in the instructions.

Everything is connected in the app and seems to be working fine. However, when adjusting the temperature on the tado stat it makes a click and changes to heating but the boiler never fires. I’ve been without heating for a day now waiting for support to get in touch.

Any ideas?

There is another stat upstairs but ids never worked I’ve just left it alone previously and used the downstairs one (now replaced by a Tado).

Thanks

Answers

  • cbd20
    cbd20 ✭✭
    edited February 24
    @Bathedtado This is just a guess, but are you saying that you can hear the relay on the tado thermostat click?

    If so, it should be telling the extension kit to switch on the heating, and therefore you should hear a click from the extension kit.

    It might be worth checking that the extension kit has been set as the zone controller for the thermostat. In the app, go to settings then "rooms and devices" and click on the Room name (not the device) and if you can select the extension kit as the zone controller.
  • @cbd20 hi thanks for your reply

    I can hear the relay click on the thermostat.

    I’m using a wired thermostat so wasn’t able to change the zone controller to be the extension kit without forcing the stat to be setup as a temperature sensor. It says it can’t be wired but I did it anyway and I did start to hear the relay click on the extension box.

    However the boiler didn’t fire and the relay was clicking very regularly.
  • @Bathedtado So I installed my system a few years ago, so unsure if they've changed things since then but my setup was as follows, and sounds similar to yours:

    Extension kit replaced the old programmer.

    Tado thermostat wired in where the old thermostat was.

    The relay does not click in my thermostat in this setup, only the relay in the extension kit. I believe from memory that although the thermostat is technically wired in, it's set as a temperature sensor, and it's effectively just bridging the live and switched live (I guess it permanently latches the relay or something in the thermostat when set to temperature sensor).

    This will then enable it to tell the extension kit to turn the heating on, and you'll be able to set it as zone controller.

    Like I say, I'm not an expert here though so it might be that someone else has some other ideas, I just picked up on your thermostat relay noise comment as mine definitely doesn't do that.

  • GrayDav4276
    GrayDav4276 ✭✭✭
    edited February 24
    Hi @Bathedtado,
    It looks like you have contradicted yourself
    In your 1st post you state that....

    " I’ve installed my Tado thermostat and extension kit correctly and followed all the steps to the letter in the instructions."

    And then in your next post you state that...

    " I’m using a wired thermostat so wasn’t able to change the zone controller to be the extension kit without forcing the stat to be setup as a temperature sensor. It says it can’t be wired BUT I DID IT ANYWAY ".

    My thoughts are that there may be an issue with the way that your installation is fitted.
  • Just to update you guys, Tado have been in contact and said there was a configuration error. They have pushed some settings and this is now resolved. Heating is working as expected.
  • @Bathedtado excellent news.

    I'd be interested to hear if your extension kit is now the zone controller as I'd expect, or if you've got a slightly different configuration.
  • @cbd20 yeah it has set the extension kit as the zone controller. Although when I did this manually and set my thermostat up as a temperature sensor as you suggested, the extension kit relay kept clicking and nothing happened. Now it’s instant and works fine haha. Thanks again
  • @Bathedtado,

    Glad it's all been resolved 👌
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