Medium
E41 on Remeha Avanta 28c

Your boiler is struggling to accurately measure the temperature of the water being heated for your taps and showers.

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

DHW sensor error (S6): during operation (Combi only)

Engineer required

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

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Related fault codes

E40View →E42View →

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