A British Gas engineer recently replaced an anti gravity valve because the upstairs radiators were getting hot even when the boiler was just set to hot water. That problem is now solved but 2 of the upstairs rads no longer get warm at all. The engineer came back and said it was an airlock. He did various things but the problem remained so another engineer came and said we just needed the boiler pump turning up and put it to number 2. All the rads now get hot but the pump is very noisy on 2 and they used to get hot with the pump set to 1. Could there be something wrong with the valve, can they be too stiff to open properly? I don't know how these valves work inside.
Would be grateful for any advice as the boiler is below the bedroom of someone who is longterm ill.
Thanks.
Would be grateful for any advice as the boiler is below the bedroom of someone who is longterm ill.
Thanks.