Medium
E08 on Biasi Advance 25C

Your boiler's temperature sensor for hot water has stopped working properly, meaning your taps and showers may run cold or at inconsistent temperatures.

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

D.H.W. temperature probe NTC failure

Engineer required

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

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