BoilerFaultCodesEvo L A Fault Code
Also written as LA — same fault.
The Evo L A fault code means: your boiler has failed to ignite after several attempts, meaning you will not have any heating or hot water until the system is reset or repaired.. It appears on 1 Evo model in our database.
Technical description: GO TO FRAME 87
DIY fix possible
Check that your gas emergency control valve is in the 'on' position and you have credit on your meter.Press the 'Reset' button on the boiler control panel for two seconds.Ensure the condensate pipe (the plastic pipe leading outside) is not frozen if it is currently very cold weather.
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Evo models that show the L A fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Evo L A fault code information on this page is sourced and cross-checked against the official Evo service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026