Low
E430 on Baxi Eco Compact

Your boiler is checking if there is enough water pressure to run safely and may have paused temporarily.

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 needle is below 1.0, use the filling loop handles to top up the water pressure to 1.5 barEnsure all radiator valves are fully openPress the Reset button once the pressure is stable

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful