No it must come from the same supply as the boilerHello,
I am back
Unfortunately my experiment didn’t work.
I have buzzed the cables from the junction box with the one in the thermostat and none of them worked so I couldn’t bring the neutral to the thermostat.
Now I’m stuck, I have found a power socket close to the stat, I was wondering if I can run a live and neutral from the socket to power up the thermostat and use the exiting live and the switch live for the opening and closing of the heating and don’t use the blue cable.
Is it risky to do it?
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