7 / A High

Ideal 7 / A Fault Code

Also written as 7A — same fault.

The Ideal 7 / A fault code means: your boiler's internal computer has developed a fault and can no longer safely manage the heating or hot water functions.. It appears on 1 Ideal model 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: Defective control panel.
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 7 / A fault code

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

Source

Ideal 7 / A 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