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Ok there was some air in the pipes so I let that out, but there is no change. I have tried closing the working rads but still nothing. I have a 3 port valve. So have I tried everything?! Is it time to get a professional in? (again!!!)

Thanks very much. I have tried changing the speed of the pump and it makes a noise like it is going faster! I'll have a look in the loft and see if I can find an air valve. Thanks again!

Thanks for your reply. I have bled them all, no air just clear water. The cold rads are completely cold, pipes cold too. It is a standard boiler. They are standard valves I think. The rad upstairs that is working is on the landing, bathroom rad not working. I think it's something in the...

Hi I recently had the heat exchange and pcb replaced when the central heating boiler started leaking. The heating seemed to be working fine, but I went away for a few days and on my return I have found that only the downstairs rads are working, and one upstairs that seems to get it's feed...