Medium
Fault on DHW sensor on Heatline S24 / S30

Your boiler is struggling to detect the temperature of the water coming out of your hot taps, which means it cannot heat your hot water correctly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Fault on DHW sensor

From this model's manual
Verified against the Heatline S24 S30 installation & service manual, page 27.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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