Emergency
FA 364 on Worcester Bosch Hideaway

Your boiler has detected a potential internal gas leak or a fault with the safety valve that controls the fuel supply.

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

Gas valve EV2 leak test failed – gas valve leak

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

FAView →EAView →E9View →

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