Central Heating Flow pipes burning hot - Return Pipes cold

[kenkey]

is the pipe work new if so there could be a crossed flow and return on a strait coupler witch would bypass rads and have that sort of effect

 

[Dotty]

Thread's over 2 years old son. They'll have had it sorted by now.

 

[jfb]

Hello this sounds like a real nightmare. Don't want to sound condescending but I think the best thing to do with this is to go back to basics and start again. It sounds like the boiler is working ok but is the bypass set correctly try closing it and setting it again and are all the pipes, pump and valves fitted and connected correctly. You will have to check each one. Water will always take the easiest route. If you think its a blockage in the pipework try a magnet if it sticks to the pipes that's where the blockage is.

 

[jfb]

whoops didn't realise how old this was lol