Emergency
A10 on Vokera Easi-Heat I

Your boiler has stopped working because it cannot safely get rid of exhaust gases or water produced during the heating process, triggering a safety shutdown.

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

Flame lockout, Condensate drain obstructed, Flue gas exhaust/air suction obstructed

From this model's manual
Verified against the Vokera Easi Heat I Combi installation & service manual, page 8.
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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