High
05 on Vokera Linea Plus AG

Your boiler has experienced a lockout due to a failure to ignite or a flame being lost during operation.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Re-set as described for code 01.

From this model's manual
Verified against the Vokera Linea Plus Ag installation & service manual, page 68.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This fault happens because the boiler has tried to light the burner but failed to detect a steady flame after several attempts. It is usually caused by a lack of gas reaching the burner, a worn-out ignition spark, or a sensor that can no longer 'see' the flame even if it is there.

This issue is more frequent during extreme cold snaps, as external gas meters or pipes can sometimes become restricted by freezing temperatures.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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