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 3 Worcester Bosch models in our database.
Technical description: Flow sensor short circuit - Flow sensor shorted or damaged.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like E2 222: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
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.
- Worcester Bosch Greenstar 12i System manual (PDF)
- Worcester Bosch Greenstar i manual (PDF)
- Worcester Bosch Greenstar Ri manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026