Emergency
Flame On Before Gas On on Ideal Logic Max System 2

Your boiler thinks it sees a flame before any gas has even been released, which usually means a sensor is confused or there is a small internal leak.

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 detected before gas valve opened

From this model's manual
Verified against the Ideal Logic Max System 2 installation & service manual, page 72.
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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