BoilerFaultCodesWorcester Bosch FAIL POINT A Fault Code
Also written as FAILPOINTA — same fault.
The Worcester Bosch FAIL POINT A fault code means: your boiler appears to have lost all electrical power, meaning it cannot start up or provide any heating or hot water.. It appears on 1 Worcester Bosch model in our database.
Technical description: No lights at all
What causes the Worcester Bosch FAIL POINT A fault?
This fault occurs when the boiler's control system is no longer receiving the electrical current it needs to operate. The most common reason is a blown internal glass fuse or a failure within the main circuit board, often triggered by a sudden power surge or water leaking onto electrical components. Effectively, the boiler has lost its 'brain' and cannot communicate with any other parts of the system.
This issue often occurs during the first cold snap of autumn when older electrical components are placed under sudden stress after being idle over the summer.
DIY fix possible
Check if other appliances in your home have powerEnsure the boiler's electrical isolation switch is turned onCheck your home's main fuse box (consumer unit) for any tripped circuit breakers
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A cover plan would handle faults like FAIL POINT A: no call-out fees, no surprise bills.
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Worcester Bosch models that show the FAIL POINT A fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch FAIL POINT A 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