BoilerFaultCodesThis is not an active fault code, but a menu setting used by engineers to view the history of previous problems with your boiler.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Last fault (displayed when a fault has occurred and navigating to service function 2.0)
What causes this fault?
This code appears when an engineer is accessing the boiler's internal memory to review its service history. It does not indicate a physical failure, but rather represents the 'mailbox' where the very last recorded error is stored for diagnostic purposes. If you see this, it simply means the system is being audited and there is no active mechanical breakdown currently triggered by this specific number.
DIY fix possible
Press the reset button to return the boiler to its normal display modeIf the boiler is working normally, no further action is requiredIf the boiler is not working, check for other flashing codes on the display
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