Emergency
E77 on Alpha E-Tec Plus 28

Your boiler has detected an electrical issue related to the component that controls your gas supply, so it has safely shut down to prevent any risk.

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

High current on gas valve

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

E76View →E78View →

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