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Gordon Booth · 05-02-2012, 18:19

Sometimes you can get an airlock in a pipe. Try turning all the radiators off except one of the cold ones.Run the central heating until(if?) it gets hot. Then bleed the air out of it and turn it off and the other cold one on. Do the same process.
The full pressure of the system going to one radiator may blow the air bubble out of the piping and into that radiator.

05-02-2012, 18:19	#3
Gordon Booth Senior Member+ Join Date: Jul 2010 Posts: 2,402 Liked: 715 times Rep Power: 46611	Re: Heating Help Sometimes you can get an airlock in a pipe. Try turning all the radiators off except one of the cold ones.Run the central heating until(if?) it gets hot. Then bleed the air out of it and turn it off and the other cold one on. Do the same process. The full pressure of the system going to one radiator may blow the air bubble out of the piping and into that radiator.