E2 222 High

Worcester Bosch E2 222 Fault Code

Also written as E2222 — same fault.

The Worcester Bosch E2 222 fault code means: your boiler has detected an electrical fault with the internal sensor that monitors the flow of water, meaning it cannot safely regulate the temperature and has shut down to prevent damage.. It appears on 11 Worcester Bosch 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: Flow sensor short circuit - Flow sensor shorted or damaged.
Typical repair cost £150-250 (including labour)

Engineer required

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

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Worcester Bosch models that show the E2 222 fault code

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

Source

Worcester Bosch E2 222 fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

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