Low
E430 on Baxi Suprima 115

Your boiler is temporarily checking if there is enough water pressure 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 heating system (it should be between 1 and 1.5 bar).If the pressure is low, use the external filling loop to top up the water.Ensure all radiator valves are open and the system is not leaking.

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Related fault codes

E118View →E119View →

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