6 green flashes Low

Baxi 6 green flashes Fault Code

Also written as 6GREENFLASHES — same fault.

The Baxi 6 green flashes fault code means: your boiler has encountered a minor glitch and is attempting to restart itself automatically without you needing to do anything.. It appears on 27 Baxi models in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Miscellaneous error. Temporary error, will self reset.

What causes the Baxi 6 green flashes fault?

This fault occurs when the boiler's internal computer detects a minor communication glitch or a temporary electrical blip that doesn't match its normal operating sequence. It is often triggered by a momentary fluctuation in the power supply or a brief internal sensor disagreement. Because the system can't quite identify the specific issue, it pauses briefly to verify its safety checks before clearing the error itself.

Typical repair cost £0-120 (including labour)

DIY fix possible

Wait up to 15 minutes for the boiler to complete its self-reset processEnsure the boiler's electrical supply is stable and not fluctuatingTurn the selector switch to 'Reset' and back to 'On' if the light continues to flash

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Baxi models that show the 6 green flashes fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Baxi 6 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 27 April 2026