BoilerFaultCodesVokera E11 Fault Code
The Vokera E11 fault code means: your boiler has shut itself down for safety because a internal limit or protection switch has been triggered.. It appears on 3 Vokera models in our database.
Technical description: High temperature zone room thermostat intervention
What causes the Vokera E11 fault?
This fault occurs when the boiler's internal safety sensors detect that the unit has exceeded its safe operating temperature limit. The most common reasons for this include a lack of water flow, a blockage in the heat exchanger, or a pump that has failed or become stuck. As a precaution, the system shuts down immediately to prevent damage to the internal components.
This fault is more frequent when the heating is first turned on in autumn, as pump components can seize up after being inactive throughout the summer.
DIY fix possible
Locate the reset button or selector switch on the control panelTurn the selector to the 'OFF/RESET' position and wait for 5 secondsTurn the dial back to the 'ON' position to restart the boiler
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Gas Safe Register →Vokera models that show the E11 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E11 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