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my boiler is firing up but only one radiator is coming on?

The boler is on a timer switch. However only one radiator is coming on, Even when I switch the heating on 24hrs only one radiator comes on.

mrs. barnard
December 2009
Heating, Home Heating SystemsHeating Radiator System
probably a faulty pump

Ian
December 2009

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Boiler On But Only One Radiator Working?