BoilerFaultCodesVokera E29 Fault Code
The Vokera E29 fault code means: your boiler has shut down completely because a safety sensor has detected an internal fault that requires a professional inspection.. It appears on 2 Vokera models in our database.
Technical description: The safety devices have been activated (lockout)
What causes the Vokera E29 fault?
This fault occurs when the boiler’s safety circuit detects an internal error or overheating, causing it to shut down to prevent damage. The most common reason is a faulty safety thermostat or a breakdown in the communication between the sensors and the main control board. It can also be triggered by damaged wiring preventing the boiler from confirming that all safety systems are functioning correctly.
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 E29 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E29 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