BoilerFaultCodesVokera E011 Fault Code
The Vokera E011 fault code means: your boiler has detected a flame when there shouldn't be one, or the sensor incorrectly thinks a fire is lit, causing it to shut down for safety.. It appears on 12 Vokera models in our database.
Technical description: Extraneous flame
What causes the Vokera E011 fault?
This fault occurs when the boiler's control system detects a flame signal at a time when the gas should be turned off. This is often caused by a faulty sensor sending a false signal, a gas valve that is leaking slightly, or a glitch in the main circuit board that misinterprets electrical background noise as a fire.
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 E011 fault code
Click a model for the full fault code list and model-specific repair notes.
- Evolve Repair: £120-300
- Evolve S Repair: £150-300
- Pinnacle Combi Repair: £120-£350
- Pinnacle System Repair: £120-£350
- Synergy Combi Repair: £120-300
- Synergy System Repair: £120-280
- Unica MAX Repair: £150-300
- Unica MAX Combi Repair: £120-£350
- Unica MAX System Repair: £120-300
- Vision Plus 35C/40C Repair: £120-250
- Vision S Repair: £150-300
- Vision System Sgc Repair: £120-250
Source
Vokera E011 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