8/0/2 Low

Worcester Bosch 8/0/2 Fault Code

Also written as 802 — same fault.

The Worcester Bosch 8/0/2 fault code means: your boiler has lost its internal clock settings, likely due to a recent power cut, and needs to be reset to ensure your heating schedule works correctly.. It appears on 1 Worcester Bosch model in our database.

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.

Technical description: Time not set. Failing time setting, e.g. due to a long power cut.

DIY fix possible

Locate the main control panel on your boiler or wall thermostat.Access the menu settings and navigate to the 'Time/Date' options.Update the current time and date to save the settings and clear the error.

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Worcester Bosch models that show the 8/0/2 fault code

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

Source

Worcester Bosch 8/0/2 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 7 July 2026