BoilerFaultCodesVokera L2 Fault Code
The Vokera L2 fault code means: your boiler has failed to ignite properly and has locked itself out for safety.. It appears on 4 Vokera models in our database.
Technical description: Led alarm (blink red)
What causes the Vokera L2 fault?
This fault occurs when the boiler attempts to light the burner but fails to detect a stable flame. The most common reasons are a worn-out ignition electrode that cannot create a spark, a faulty gas valve preventing fuel from entering the burner, or a problem with the internal control board.
This fault can be more frequent during the first cold snap of winter when components that have sat idle all summer are suddenly forced to operate under high demand.
DIY fix possible
Check if your gas supply is turned on at the meterTurn the mode selector switch to the 'OFF/RESET' position and wait for a few secondsTurn the switch back to the 'ON' position to restart the ignition process
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Gas Safe Register →Vokera models that show the L2 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera L2 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