BoilerFaultCodesVokera E 02 Fault Code
Also written as E02 — same fault.
The Vokera E 02 fault code means: your boiler is failing to light the fuel inside, so it has safely shut down to prevent gas from building up.. It appears on 1 Vokera model in our database.
Technical description: No flame detected
What causes the Vokera E 02 fault?
This fault occurs when the boiler attempts to ignite but its internal sensors cannot detect a flame. The most common reasons include a lack of gas supply to the unit, a build-up of carbon on the ignition probes, or an electrical failure preventing the spark from jumping.
This fault can be more frequent during extreme cold spells if the external gas regulator freezes or if the gas supply pressure drops due to high local demand.
DIY fix possible
Check if other gas appliances, like a gas hob, are working to ensure gas is reaching the propertyCheck that your gas meter has credit if you use a pre-payment meterPress the Reset button or turn the dial to 'Reset' for a few seconds to see if the boiler restarts
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Vokera models that show the E 02 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E 02 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