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mid position

  1. R

    Boiler won't output DHW & CH at the same time.

    Info: Worcester Greenstar Heatslave Drayton MA1 Mid Position Valve Actuator Summary: Had to replace the valve actuator as the old one was sticking. Wired up the new one with the same pinout as the original. Tested but got the following failed outcome; Off = DHW Water On = DHW Heating On = CH +...
    • radiohe4d
    • Thread
    • actuator dhw diverter valve drayton greenstar heatslave mid position worcester
    • Replies: 17
    • Forum: Plumbing and Central Heating
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