BoilerFaultCodesVokera E19 Fault Code
The Vokera E19 fault code means: your boiler has shut itself down as a safety precaution because it has detected an internal fault that could lead to overheating or unsafe operation.. It appears on 2 Vokera models in our database.
Technical description: The safety devices have been activated (lockout)
What causes the Vokera E19 fault?
This fault occurs when the boiler's internal safety sensors detect that the water temperature has exceeded safe limits or that a critical component has failed. It is usually triggered by a circulation issue within the unit or a faulty sensor sending incorrect data to the control board. For safety, the system shuts down completely to prevent thermal damage to the heat exchanger.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Vokera models that show the E19 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E19 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