Emergency
A 18 on Vokera Verve I 50

Your boiler is struggling to confirm that the flame has turned off properly after it finished its heating cycle, which is a safety mechanism to prevent gas buildup.

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

The flame was still detected after more than 10 seconds from the closure of the gas valve. Press the reset key. If the error is permanent replace the circuit board.

From this model's manual
Verified against the Vokera Verve I 50 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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Related fault codes

A 01View →A 02View →

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