by roger196 »
Mon Nov 19, 2007 7:52 pm
If the suggested balancing does not work, it is likely that you have an airlock in the pipes to the non working rads. Gradually turn off all except one of the working rads. This will force water thru the non working rads.
I assume you have checked that the lockshield valves are open and that the TRV's, if fitted are working.