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Vaillant Fault Code F.72

F.72

Fault: Flow/return sensor: Flow/return NTC temperature difference too great → flow and/or returntemperature sensor defective




Vaillant Fault Code F.72, Landlord gas safety inspection Enfield, Potters Bar,Cheshunt, Ware, Hertford
Landlord gas safety inspection Enfield, Potters Bar,Cheshunt, Ware, Hertford

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