Radiators do not fill after replacing valves.
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Gordon White
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Joined: Tue Jul 21, 2009 7:20 pm

Radiators do not fill after replacing valves.

by Gordon White » Fri Aug 28, 2009 1:11 pm

Replaced radiator valves, switched on water, header tank fills ok but not the radiators - no hissing when I try to bleed. All lockshields and valves are open. Any suggestions?

htg engineer
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Joined: Tue May 22, 2007 6:22 pm

by htg engineer » Fri Aug 28, 2009 8:40 pm

Blocked cold feed or airlock, turn on central heating for 2 or 3 seconds, see if the pump clears it.

You could backfill with a hose connected to a radiator valve or drain point.


htg

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