In fairness, I’ve just fitted this radiator just before we started using the central heating for the winter so I haven’t actually checked it recently but it has always worked yes and all the other radiators are working fine in the house I’ve definitely come off the feed and return. I have concentrated A lot on bleeding the new radiator a few times but I haven’t spent a lot of time bleeding the old radiator…. I’m wondering if the old radiator was drained more than I thought when I fitted the new rad and that one is air locked.