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grant combi 90 v 3 boiler fault is when boiler on for hot water only the boiler will not keep to temp.the boiler fires when divertor valve operates switch and water then heats up ok.the rotating temp switch on front seems to work.will fill up bath no problem.in morning the boiler is stone...

new ring of 12 240 spot recessed lighting in kitchen.the weeks have seen numerous lamps tripping and blowing the lamps.replaced and new lights dontseem to last long

grant combi boiler with the filling loop diconnected the pressure in the boiler rises above 3 bar and the relif valve lets out to drain but imediately rises back up over an hour or so.could this contribute to excess oil usage over the month

i have 2nd light switch opposite to one in kitchen but unable to use both together wiring all over the place ,has somebody got easy way to check out wires

no dhw during operation of boiler,boiler fires when central heating on ok.dhw none, know the bascis changed diaphram and then changed mixer valve but pin on the diaphram still dosent come out approx 11mm..stripped valve and all is very free moving, do i need another divertor valve as i got two...