Medium
75 on Alpha Evoke

Your boiler is struggling to read its own temperature because one of its internal monitoring sensors is likely faulty or disconnected.

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

Possible failure of one or both sensors

Engineer required

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

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