Medium
F.82 on Vaillant ecoTEC exclusive

Your boiler has detected a communication issue with the safety component that prevents internal corrosion, meaning it cannot confirm the tank is protected.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Fault:Ext.currentanode Externalcurrentanodenotconnected: – X43edgeconnectorwithbridgemissingfromthePCB Externalcurrentanodeconnected: – Powersupplytotheexternalcurrentanodewasinterrupted – CablebetweenPCBandexternalcurrentanodedefective – Externalcurrentanodedefective

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F.83View →F.84View →

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