Recent content by kzl

Just only managed to fix it today. Done as you guys adviced and it all finally seems to be working. Thank you for your time and help!

I have not. I didn’t realise I have to. Only removed the rt. I’ll try tomorrow. Should that fix the problem? Tia

Thank you. So seems like the heating isn’t working. I can hear boiler making clicking noise (starting up) when I turn the heating up with nest or turn it down but radiators aren’t getting hot at all. What could be the reason for that?

Thank you. Vaillant is wired, at the back of nest says not to connect it to 230V power therefore wasn't sure if I can replace it. Anyway seems it's not responding at all anyway so need to check the wiring again or i'm doing something else wrong

Hi, I have just connected Nest Thermostat 3rd Gen to my Vaillant using this diagram: Am I able to connect Thermostat to the wall wiring by replacing my old thermostat: Or does it have to be connected to the usb power? TIA