halstead Ace High No Hot water or central heating

jaguar49 · 20 Nov 2017

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

Terrywookfit · 20 Nov 2017

Yes. Same part as Vokera Maxin.

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

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halstead Ace High No Hot water or central heating

jaguar49

Terrywookfit

DIYnot Local

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