BoilerFaultCodesYour boiler's internal computer has encountered a software or communication error and can no longer control the heating process.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: System fault boiler electronics / basic controller
What causes this fault?
This fault occurs when the boiler's main control board loses the ability to communicate with the internal software or the display screen unit. It is typically caused by a critical hardware failure within the electronics or a corrupted data link between the internal components. In most cases, the central processor has failed to perform its safety checks, forcing the system to shut down for protection.
DIY fix possible
Locate the reset button on the boiler's front control panel.Press and hold the reset button for three seconds until the display changes.Wait for the boiler to complete its restart sequence to see if the error clears.
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