Low
E430 on Baxi 800

Your boiler is checking if there is enough water pressure to operate safely and may have detected a temporary drop.

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

Water pressure temporary test.

DIY fix possible

Check the pressure gauge on the front of the boilerIf the pressure is below 1.0 bar, use the internal filling loop levers to top it up to 1.5 barReset the boiler by turning the selector knob to 'R' for five seconds

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Related fault codes

E118View →E119View →E125View →

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