L E High

Ideal L E Fault Code

Also written as LE — same fault.

The Ideal L E fault code means: your boiler's main control unit has identified a critical internal electronic failure and requires a professional inspection to determine if the computer board needs to be replaced.. It appears on 7 Ideal models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: BOARD ERROR
Typical repair cost £250-450 (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 L E fault code

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

Source

Ideal L E fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026