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    Digistat 3 to replace old honeywell

    Hi there. Before anyone shouts at me I have read all of the other posts & FAQ concerning this task. Summary is old Honeywell had 4 wires - Red (Common), Blue (Neutral), Yellow (Call for Heat), Earth. I bought a Digistat 3 in B&Q and from this forum deduced that only need 2 wires - Red (Common...
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