Vaillant Fault Code F.68Richard WeedonFeb 28, 20211 min readF.68Fault: Flame signal unstable: Air in gas, gas flow pressure too low, incorrect air ratio, condensate duct blocked, ionisation flow interruption (cable, electrode), flue gas recirculation, condensate duct Landlord gas safety inspection Enfield, Potters Bar,Cheshunt, Ware, Hertford
F.68Fault: Flame signal unstable: Air in gas, gas flow pressure too low, incorrect air ratio, condensate duct blocked, ionisation flow interruption (cable, electrode), flue gas recirculation, condensate duct Landlord gas safety inspection Enfield, Potters Bar,Cheshunt, Ware, Hertford
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