218 High

ECA 218 Fault Code

The ECA 218 fault code means: your boiler has detected that the water pressure is incorrect, causing the system to 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: Pressure control
Typical repair cost £60-180 (including labour)

DIY fix possible

Check the pressure gauge on the front of the boiler.If the needle is below 1 bar, use the filling loop valves to top up the water until the gauge reads between 1.0 and 1.5 bar.Restart the boiler to clear the fault code.

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ECA models that show the 218 fault code

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

Source

ECA 218 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