Emergency
E03-894 on Keston S30

Your boiler is struggling to get the right balance of air and gas to burn safely, which is often caused by the wrong internal setting or part being installed for the type of gas you are using.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Air Orifice - LPG

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

E03-888View →

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