BoilerFaultCodesWorcester Bosch FAIL POINT C Fault Code
Also written as FAILPOINTC — same fault.
The Worcester Bosch FAIL POINT C fault code means: your boiler has lost power or has a major electrical fault, meaning it cannot provide any heating or hot water despite the fuse board appearing normal.. It appears on 1 Worcester Bosch model in our database.
Technical description: No red lights (Green light functioning)
What causes the Worcester Bosch FAIL POINT C fault?
This fault occurs when the boiler's internal brain loses the ability to distribute power to key components like the fan or pump. It is usually caused by a surge that has blown the internal glass fuses or a complete failure of the transformer on the main circuit board. Because the boiler cannot verify that its safety systems are powered, it shuts down entirely as a precaution.
This fault is often seen after summer thunderstorms or during winter power grid fluctuations, as electrical surges are the primary trigger for blowing the boiler's internal fuses.
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 FAIL POINT C fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch FAIL POINT C 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