Vaillant VCW T3W combi boiler

andrewk · 31 Oct 2005

Hi
I have a Vaillant VCW T3W combi boiler. i want to update the room thermostat/timer.
The problem is the new thermostat/timer only has one three core wire terminals L,N,E. and my old one has two three core cables. how do i change it.

regards
Andrew

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Vaillant VCW T3W combi boiler

andrewk

DIYnot Local

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