High
A02 on Ferroli iBoiler 24

Your boiler is failing to detect a flame when it tries to start, likely due to a faulty ignition component or an internal electrical error.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

Technical description

Electrode or card error

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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Related fault codes

A01View →F05View →A06View →

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