BoilerFaultCodesWorcester Bosch E00-741 Fault Code
Also written as E00741 — same fault.
The Worcester Bosch E00-741 fault code means: your boiler has detected an issue with the internal burner assembly components, likely related to the incorrect gas injection setup for your fuel type.. It appears on 1 Worcester Bosch model in our database.
Technical description: Burner Injector – Propane Stereomatic, Type 7, 2.78mm dia.
What causes the Worcester Bosch E00-741 fault?
This fault happens when the boiler identifies that the internal components used to burn gas do not match the specific type of fuel being supplied to your home. It typically occurs if the wrong parts were installed during a repair or if the settings were incorrectly adjusted, preventing the unit from creating a safe and efficient flame. The boiler shuts down as a safety precaution because using the wrong injectors can cause the burner to overheat or flicker dangerously.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Worcester Bosch models that show the E00-741 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch E00-741 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