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Radiator valve head operation
A question about the central pin in the thermostatic head of for
instance https://www.screwfix.com/p/drayton-r...ing-head/3279r One of my radiators is not coming on. I've taken the head off and if I rotate the top part (ie hot to cold) the central assembly doesn't move though I can push it in with a screwdriver and it springs back but seems to require more pressure than I'd expect the little pin in the radiator valve could exert. I've tried a working head from another radiator and the pin retracts as I go to 5 and protrudes as I go to 0. So how should it operate and if faulty should the item referred to fix it? The pins in both radiators are free and can be pushed down (= off?) -- AnthonyL Why do scientists need to BELIEVE in anything? |
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