EA High

Main EA Fault Code

The Main EA fault code means: your boiler is failing to light because it cannot detect a flame or isn't receiving enough gas.. It appears on 1 Main 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: No ignition (gas supply or ignition electrodes)
Typical repair cost £120-280 (including labour)

DIY fix possible

Check if other gas appliances, like a cooker hob, are working to confirm your gas supply is active.If you have a prepaid gas meter, ensure it has sufficient credit.Reset the boiler by following the instructions in your user manual.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

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Main models that show the EA fault code

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

Source

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

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026