E08 High

ECA E08 Fault Code

The ECA E08 fault code means: your boiler is failing to detect a flame or the flame is cutting out, so the system has shut down for safety.. It appears on 1 ECA 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: Ionization / Flame loss failure
Typical repair cost £100-280 (including labour)

DIY fix possible

Check if other gas appliances in your home (like a hob) are working to ensure gas is reaching the propertyCheck that your gas prepayment meter has credit if applicablePerform a 'Reset' by turning the control knob to the R position for a few seconds

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ECA models that show the E08 fault code

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

Source

ECA E08 fault code information on this page is sourced and cross-checked against the official ECA service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026