Hi all, I'm trying to set up my Nest Thermostat E to my Worcester Bosch Greenstar 28i junior combi boiler. The old thermostat is wired as pictured in the attached and following the nest app instructions I've wired the heat link as pictured. Yellow cable blocked off, earth left as is and tried blocking off, red - C, blue - NO.
However, the thermostat doesn't turn the radiators on when turning the temp dial up or by pressing the heatlink button to manually turn it up.
The boiler displays a solid blue light, the rest button is off and boiler isn't operating in central heating demand but hot water works fine. According to manual, possible solutions include "Live demand at ST10-Lr (from external room thermostat/timer", "Fascia mounted timer","CH knob in winter position", "Diverter valve", "Control board".
Old thermostat works fine, the nest communicates with the heat link fine, seems to be heat link to boiler. Programmer is set to constant.
Any ideas? Thanks in advance!
