How much does it cost to fix Ideal error code 41?

Typical repair cost for the Ideal 41 fault is £250-450 including labour.

41 High

Ideal 41 Fault Code

Q: What does the Ideal 41 fault code mean?

Your boiler’s internal control system has encountered a critical electronic failure that it cannot clear itself.

The Ideal 41 fault code means: your boiler’s internal control system has encountered a critical electronic failure that it cannot clear itself.. It appears on 2 Ideal models in our database.

Technical description: Replace the control panel if the malfunction remains after a reset or if the malfunction has occurred before at this control panel.

What causes the Ideal 41 fault?

This fault occurs when the boiler's internal computer experiences a major communication breakdown or a physical failure within its circuitry. The most common reason is that the electronic components on the main control board have worn out or suffered a voltage spike, preventing the boiler from safely managing the heating process.

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 41 fault code

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

Source

Ideal 41 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