BoilerFaultCodesWorcester Bosch 1071 Fault Code
The Worcester Bosch 1071 fault code means: your boiler is reminding you that its annual service is now due to keep it running safely and efficiently.. It appears on 2 Worcester Bosch models in our database.
Technical description: Maintenance is now due please call your service engineer
What causes the Worcester Bosch 1071 fault?
This code is triggered by the boiler's internal timer reaching a pre-set limit of operating hours or months since its last professional inspection. It is not caused by a mechanical failure, but rather a deliberate reminder programmed by your engineer to ensure the appliance remains safe and valid under warranty. The code will remain visible until a qualified professional performs the service and resets the maintenance counter.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Search the official register for a qualified engineer in your area.
Gas Safe Register →Worcester Bosch models that show the 1071 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 1071 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