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Vaillant timeswitch 150 analogue unit (clock stopped?

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vaillant ecotec 630 propane?

water coming out of pressure relife pipe when boiler running

robert
February 2011
VaillantHeating, Home Heating SystemsVaillant Ecotec Water
hi, possible causes are ,faulty pr valve faulty,,expansion vessel discharged or damaged( check if pressure rises high with heating only on, if so re-pressure ex-vessel or replace.

peter
February 2011

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