EE2222 High

Ariston EE2222 Fault Code

The Ariston EE2222 fault code means: your boiler is struggling to process the electricity supplied to it, which is likely caused by an unstable power source or an internal failure in the control unit.. It appears on 3 Ariston models 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: Problem with the 50Hz power supply
Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ariston models that show the EE2222 fault code

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

Source

Ariston EE2222 fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.

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