BoilerFaultCodesVokera A70 Fault Code
The Vokera A70 fault code means: your boiler is struggling to accurately measure the temperature of your hot water, which means it will likely stop providing hot water to your taps until the faulty sensor is replaced.. It appears on 3 Vokera models in our database.
Technical description: DHW probe fault
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 A70 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera A70 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 7 July 2026