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  1. M

    S plan no heating

    Hi, I have no ch on an s plan system, timer and stat are both calling, I have the following on the 2port valve wiring - 240v on grey, 0v on brown and 0v on connection no 4, what do I need to replace?
  2. M

    Y plan no ch

    Hi, I have no heating on my y plan system, I have 240v on white wire and 0v on orange wire, calling for heating with timer and stat, what do I need to replace? Tia
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