Low
E430 on Baxi Suprima 70

Your boiler is temporarily checking if there is enough water pressure in the system to operate safely.

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 your boiler or central heating system.If the pressure is below 1.0 bar, use the filling loop to top it up to roughly 1.5 bar.Restart the boiler to see if the code clears.

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Related fault codes

E118View →E119View →E117View →

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