Connecting wiser hub kit to baxi 800

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31 Mar 2023
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could someone advise me what my fitter connected wrong, that the HW is faultless, but the heating does not activate in any way. neither with the knob on the boiler nor with the thermostat. I already hosted three engineers who couldn't get it to work properly.. my boiler is baxi 800 and the system i am trying to connect is wiseR hub kit 1
On picture no.1 is a power supply, and no.2 is a boiler wires. Many thanks
 

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