Emergency
A02 on Ferroli Bluehelix Tech RRT 24C

Your boiler has detected a flame even though it is not supposed to be running, which is a safety lockout to prevent potential gas build-up.

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 signal present with burner off

From this model's manual
Verified against the Ferroli Bluehelix Tech Rrt 24c installation & service manual, page 43.
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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