Emergency
L9 on Ideal Mexico Super 100FF / 125FF

The boiler has detected a fault with the fan or the air pressure system, meaning it cannot push out waste gases safely and has shut down to prevent risk.

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.

Technical description

GO TO FRAME 76

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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