BoilerFaultCodesIdeal HE Fault Code
The Ideal HE fault code means: your boiler's internal computer has encountered a critical electronic failure and can no longer control the heating process safely.. It appears on 3 Ideal models in our database.
Technical description: BOARD ERROR
What causes the Ideal HE fault?
This fault occurs when the boiler's main control board suffers an internal electronic failure or loses communication with its sensors. The most common reason is age-related wear on the electrical components or a sudden power surge that has damaged the delicate circuitry. Because the board can no longer safely monitor the flame or water temperature, it shuts the system down as a safety precaution.
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 HE fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal HE 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 31 August 2026