Hi,
I am trying to swap what I think is a faulty Drayton RTS1 room thermostat with a Drayton Digistat1.
The RTS1 uses 3 wires N, L and Call-for Heat.
The Digistat uses 2 wires Common and Call for heat. ( a 3rd can be used "Heating Satisfied" but I don't need that, I don't think)...