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i did this return pumped out hot water but trv spitted a bit out then stopped hence i drained it down, that got it working for a very little bit then nothing again. I used clear pipe when i drained out and it was as clear as day so if its a blockage can't be anything but air but why would it...

My mum has microbore on a combi system. 1 rad was completely stone cold including the pipework to it. Have cleaned out the rad and closed the other radiators off but nothing. Tried the pin but it moves freely. Today I took the rad off, opened the lockshield - nice and hot but when I opened...

Have read posts on this and understand that by closing the service valves on the flow and return to the boiler then opening the valve this will create a vaccum? (have already done this on my own system although its a conventional boiler). The problem is I can see no valves on the pipework...

I've got a gas fire set within an old brickwork fireplace, this is coming out due to a damp course and the fact that I don't like it! Anyway I've been offered a new fire surround but not sure if it will fit. The fire measures 640mm at its widest and the surround at 690mm would this be too...

thanks guys - hopefully opening a return valve will sort it!

bunged both the cold feed and vent at the F+E tank

Right brought myself a bung kit, bunged the header tank and opened a vent to create a lock in the system to replace some valves on a downstairs rad (1 by 1 obviously). Problem is I got about a pint of water from the vent and got a little worried that was too much so closed it again. I opened...

Hey guys I changed a radiator in one of the bedrooms and in turn the lockshield decided to leak and no amount of packing would sort it so changed the valve. Open said valve up and now its chilly I've put the heating on. I've got 2 problems the new radiator with new valve is either on...