Medium
Flashing 70 on Heatline Capriz 28

Your boiler is struggling to detect the temperature of your hot water, which may cause your taps to run cold or prevent the hot water from switching on reliably.

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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