mts200

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    Help wiring a new thermostat (Meross MTS200B)

    I am replacing my old Drayton RTS1 thermostat with the Meross MTS200B and I don't get the heating switching on. I thought it was going to be straightforward but at this point better to ask for help than screwing something. The old thermostat wiring is this one: The new thermostat has this...
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