460 High

Ideal 460 Fault Code

The Ideal 460 fault code means: your boiler's internal computer has encountered a critical error and can no longer communicate with the rest of the system.. It appears on 2 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: internal failure - electronic

What causes the Ideal 460 fault?

This fault occurs when the boiler's main control board suffers a hardware failure, meaning it can no longer send or receive instructions to vital components like the pump or gas valve. The most common reason is an electrical short-circuit or component degradation on the circuit board itself, which prevents the 'brain' of the boiler from functioning correctly.

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 460 fault code

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

Source

Ideal 460 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