Isearson, early on in this thread I suggested a technique for checking for blockages in the pipework to the lowest rads. You do not appear to have tried this. Wouldn't it be a good idea to give it a try?
i tried it this weekend ive been fiddling around trying this and that since sat morning finished 8pm 2nite no luck tried all i put in previous to last thread and tried removing one but water came ****ing out
Are you saying that you removed one of the non-working rads and opened each valve in turn (having closed off all other rads) and in both cases water flowed freely?
If so, I am at a loss to explain why the pump should not be circulating water to the rad in question.
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