Low Warning
6 green flashes on Baxi EcoBlue Advance Heat

Your boiler has encountered a minor glitch and is attempting to restart itself automatically without you needing to do anything.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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 this 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.

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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