How much does it cost to fix Ideal error code F 02 or FN or LN?

Typical repair cost for the Ideal F 02 or FN or LN fault is £120-250 including labour.

F 02 or FN or LN High

Ideal F 02 or FN or LN Fault Code

Q: What does the Ideal F 02 or FN or LN fault code mean?

Your boiler has stopped heating because the flame inside has gone out unexpectedly, preventing it from producing heat.

Also written as F02ORFNORLN — same fault.

The Ideal F 02 or FN or LN fault code means: your boiler has stopped heating because the flame inside has gone out unexpectedly, preventing it from producing heat.. It appears on 1 Ideal model in our database.

Technical description: Flame Loss

Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ideal models that show the F 02 or FN or LN fault code

Click a model for the full fault code list and model-specific repair notes.

Logic+ Heat Repair: £120-250

Source

Ideal F 02 or FN or LN fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.

Ideal Logic+ Heat manual (PDF)

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026