Your boiler is not currently experiencing an active fault; you have simply accessed the internal menu used by engineers to view the history of previous error codes.
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: Fault codes menu item in the installer level
What causes this fault?
This is not a mechanical failure but rather a status screen within the boiler's digital menu. It occurs when a user or engineer has manually navigated to the fault history folder to review past events. Because it is simply a menu heading, your boiler is still operational and has not stopped working due to this code.
DIY fix possible
Press the 'Back' or 'Menu' button to exit the installer settingsWait for the screen to time out and return to the main temperature displayRestart the boiler if the screen remains stuck on the menu
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