Medium
Flashing 70 on Heatline Capriz 25/28

Your boiler's hot water sensor has detected a fault, meaning you may experience inconsistent water temperatures or no hot water at all.

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 on DHW sensor

Engineer required

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

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Related fault codes

Flashing 80View →Flashing 60View →

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