Emergency
16 on Glow-worm Xtrafast 96 120

Your boiler has detected that gas is leaking through its internal safety valves, meaning the system is potentially unsafe and must be shut down immediately.

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.

What the manual says

Manufacturer manual

GAS LEAK THROUGH THE SAFETY ELECTRIC VALVES

From this model's manual
Verified against the Glow Worm Xtrafast 96 120 installation & service manual, page 32.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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