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Writer's pictureRichard Weedon
Feb 28, 20211 min read

Vaillant Fault Code F.71

F.71

Fault: Flow sensor: Flow temperature sensor signalling constant value:– Flow temperature sensor incorrectly positioned at supply pipe– Flow temperature sensor defective



Vaillant Fault Code F.71,Landlord gas safety inspection Enfield, Potters Bar,Cheshunt, Ware, Hertford

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