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halstead Ace High No Hot water or central heating

Discussion in 'Plumbing and Central Heating' started by jaguar49, 20 Nov 2017.

  1. jaguar49

    jaguar49

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    Hello ,

    I have no Domestic hot water or heating , If I activate the micro switch with a screw driver on top of the Primary Flow switch everything works. About a year ago I replaced the diaphragm for the Domestic Hot water.

    I assume their is a diaphragm for the Primary Flow switch? I did noticed a few drops of water where the pin is. Also when the central heating is turned off the pin that activates the primary flow micro switch takes approx 40 seconds before it retracts , where as the DHW microswitch is almost straight away. Is there a replacement diaphragm for this ??
    Thank you
     
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  3. Terrywookfit

    Terrywookfit

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    Yes. Same part as Vokera Maxin.

    Pin not retracting can be caused by a blocked waterway in the housing.
     
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