What does the Ideal F2 Or Fn Or Ln fault code mean?

Your boiler is failing to stay lit, which means it has safely shut itself down because it cannot consistently produce or hold a flame.

How much does it cost to fix Ideal error code F2 Or Fn Or Ln?

Typical repair cost for the Ideal F2 Or Fn Or Ln fault is £150-350 including labour.

Manufacturer manual

Flame Loss

Shared across the CLASSIC2 range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Boiler cover options

A cover plan would handle faults like F2 Or Fn Or Ln: no call-out fees, no surprise bills.

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Seeing a different code? Every code this model can display, in one place.

Lockout fault with a reset-needed pattern.

Older boilers: thermocouple, draught or gas supply.

7 signs repair isn't worth it anymore.