Everything been working fine for months, but boiler stopped firing at just after 6am.

Calc

Basically as per the title.

We've had Tado controlling the boiler, most rads and the hot water for months now and it's great. But this morning, the boiler appears to have stopped firing at just after 6 am. So now we have no heating and no hot water.

The boiler pilot light is still alight - but it just doesn't seem to be firing, so either it isn't getting any signals to fire up, or there's possibly something wrong with the boiler.

Any suggestions, things to check etc would be much appreciated.

Thanks!