BoilerFaultCodesECA 322 Fault Code
The ECA 322 fault code means: your boiler has detected that the water pressure inside the system has risen above the safe operating limit.. It appears on 1 ECA model in our database.
Technical description: Water pressure 3 is too high
DIY fix possible
Locate the external filling loop connected to your boiler pipesEnsure both valves on the filling loop are firmly closedBleed a radiator in your home to drain a small amount of water until the pressure gauge on the boiler drops to between 1.0 and 1.5 bar
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ECA models that show the 322 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
ECA 322 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