Low
8E on Worcester Bosch Greenstar CDi Compact

Your boiler is currently resetting itself to its original factory settings, which is a normal process usually triggered during maintenance or setup.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Resetting the boiler to factory settings (displayed with the spanner symbol during the reset process)

From this model's manual
Verified against the Worcester Bosch Greenstar Cdi Compact installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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