Worcester Bosch 8E Fault Code
The Worcester Bosch 8E fault code means: your boiler is currently resetting itself to its original factory settings, which is a normal process usually triggered during maintenance or setup.. It appears on 2 Worcester Bosch models in our database.
Technical description: Resetting the boiler to factory settings (displayed with the spanner symbol during the reset process)
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 8E fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 8E 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 CDi Compact manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026