Emergency
E011 on Vokera Vision Plus 35C/40C

Your boiler has detected that it cannot safely get rid of exhaust gases or is struggling to take in fresh air, so it has shut down to keep you safe.

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

fumes discharge alarm/air intake obstructed

From this model's manual
Verified against the Vokera Vision Plus 35c 40c 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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