BoilerFaultCodesYour boiler has recently had its main circuit board replaced and simply needs to be rebooted to confirm the change.
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: Restart boiler by pressing RESTART.
What causes this fault?
This notification appears after a new Printed Circuit Board (PCB) has been installed to ensure the boiler’s software correctly recognises the hardware change. It is a safety and configuration step triggered because the boiler needs a manual confirmation to synchronise the new components with the system's memory. Once you press the restart button, the boiler will verify the installation and resume normal operation.
DIY fix possible
Locate the 'RESTART' button on the boiler control panelPress the 'RESTART' button firmly onceWait for the boiler to complete its startup sequence and return to the normal display screen
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