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Hey guys,
I just installed a nest thermostat 3rd on my vaillant combi boiler ecotech pro 28 (286-33) and the heating control works fine. I followed the wiring from another post here: https://www.diynot.com/diy/threads/...neration-vaillant-ecotec-pro-28.454693/page-3
However, I can't control the hot water as it's always on with the heating.
I've attched the pictures from the boiler manual and the wiring of the heatlink. I know something is missing but I just can't figure out what. Could you guys let me know what's wrong?
Many thanks
I just installed a nest thermostat 3rd on my vaillant combi boiler ecotech pro 28 (286-33) and the heating control works fine. I followed the wiring from another post here: https://www.diynot.com/diy/threads/...neration-vaillant-ecotec-pro-28.454693/page-3
However, I can't control the hot water as it's always on with the heating.
I've attched the pictures from the boiler manual and the wiring of the heatlink. I know something is missing but I just can't figure out what. Could you guys let me know what's wrong?
Many thanks