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Airlock in radiator system?

I removed a radiator for decorating and when I replaced it even after bleeding it a number of radiators in other parts of the house are cold. The pump is OK and the radiators upstairs are very hot. How do I get rid of an airlock in the radiator system?

Howard Walmsley
December 2009
Heating, Home Heating SystemsRadiator Heating Pump
Unable to get hot water from my Vokera boiler.
C/heating o.k. and plenty of cold water.I think that I have an airlock in the boiler,so how do I get rid of airlock?.

Brian Glasgow
January 2010
Close all the other radiator wheelhead or TRV valves. Then run your boiler, this will force any air to move into the problem rad and will cure your problem.

M
December 2009
Hi Mark,
Thanks for your prompt response. However both valves were fully opened after the rad was refitted.
I'm convinced there is an airlock in the heating system but I don't know how to clear it.
Howard

Howard Walmsley
December 2009
try ajust the regalator vale on the on the one that you removed, you might still have it still knocked off" when you turned the 2 valves off on that radiator, before you removed it , make sure their back open again ,,,, to let the flow get to he other radiators.

mark
December 2009

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Radiator Airlock: How to Bleed & Fix