Vaillant Ecotec Pro 28

MartinT66 · 1 Dec 2018

Hi All,

I installed a V Smart thermostat on my boiler today, easy enough, but obviously had to switch power off. Now when i have turned boiler back on, thermo is working fine, but when heating kicks in temp gets tom about 55 degs and then it goes into anti cycling mode, worked fine before thermo fitted, but now at a loss - any clues? do i have to tell it i have a thermo or anything?

Thanks

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Vaillant Ecotec Pro 28

MartinT66

DIYnot Local

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