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Mend Supra 30l-100l Heating Constantly Causing

suprima 30l-100l?

my central heating is constantly on i am an electrician and think the 2 port valve is broken could this be causing the problem

gavin
January 2011
SupraSupra 30l-100lD.I.Y, PlumbingHeating Constantly Causing
i would check all controls first usually zone valves fail in the open position (electric open not plumbing open) and most are spring loaded so unless it's on manual or the micro switch is faulty i would suspect something else

brian
January 2011

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Central Heating Always On - 2 Port Valve?