Glow-worm Easicom 24 boiler constantly on
I've recently installed a tado thermostat, two tado TRVs and an extension kit to replace my old BDR91 thermostat. The old thermostat was wireless and talking to a BDR91 receiver, wired to the boiler.
I followed the tailored instructions sent by tado. Wiring seems correct, as confirmed by the tado support team.
My boiler, however, doesn't turn off, even though the temperature in the room where my tado thermostat is is reached.
I have a radiator with no valve and a towel rail in my bathroom which stay constantly on. I can see that the radiator icon on my boiler is constantly flashing.
The support team is being completely useless. They keep asking for pictures of the wiring and keep confirming that everything is okay and things should work as expected, but as said, my boiler never turns off, so clearly there's something wrong. They clearly have no clue.
One thing I noticed is that they asked me to connect wire A in my old receiver to terminal 1 and B to terminal 4, but in the instructions on the tado website, the pdf guide for combi boilers suggests the opposite (B to 1 and A to 4). I asked them whether that was a mistake but they said it's okay.
To be fair, I am tempted to return the whole set. I don't think it's working. Unless there's something I can tweak. Any help?