DHW NTC fault Medium

Vokera DHW NTC fault Fault Code

Also written as DHWNTCFAULT — same fault.

The Vokera DHW NTC fault fault code means: your boiler is struggling to accurately detect the temperature of the water being heated for your taps, which means it may fail to provide hot water or heat it to the wrong temperature.. It appears on 1 Vokera model in our database.

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.

Technical description: ON at 50 °C | OFF at 55 °C
Typical repair cost £120-200 (including labour)

Engineer required

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

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Vokera models that show the DHW NTC fault fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Vokera DHW NTC fault fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026