BoilerFaultCodesIdeal 414 Fault Code
The Ideal 414 fault code means: your boiler's internal computer has encountered a critical electronic error and has stopped working to protect the system.. It appears on 2 Ideal models in our database.
Technical description: internal failure - electronic
What causes the Ideal 414 fault?
This fault occurs when the boiler's main control board suffers an internal hardware failure or a communication breakdown between its electronic components. It is often caused by a sudden electrical surge, moisture getting onto the circuitry, or simply the natural degradation of the solder joints over time. Because the 'brain' of the boiler can no longer safely monitor the system, it shuts down entirely as a protective measure.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Ideal models that show the 414 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal 414 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