BoilerFaultCodesBaxi 2 green flashes Fault Code
Also written as 2GREENFLASHES — same fault.
The Baxi 2 green flashes fault code means: your boiler has paused because a safety switch or external control has told it to stop running, often due to an issue with the condensate pipe or a connected external device.. It appears on 2 Baxi models in our database.
Technical description: Shutdown Input warning
DIY fix possible
Check if the outdoor condensate drainage pipe is frozen or blockedThaw a frozen pipe using warm (not boiling) water or a heat packReset the boiler by turning the selector switch to 'R' for five seconds
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Baxi models that show the 2 green flashes fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Baxi 2 green flashes fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026