Your boiler has recently had its main circuit board changed and simply needs a quick reset to finish the setup process.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Restart boiler by pressing RESTART
What causes this fault?
This message appears because the boiler’s main control board has been replaced and requires a final confirmation to synchronise with the rest of the components. It is a built-in safety step to ensure the new part is recognised correctly before the boiler begins its normal heating cycle. Once you press the restart button, the system will clear this notification and resume operation.
DIY fix possible
Locate the 'RESTART' button on the front control panelPress the button firmly onceWait for the boiler to complete its start-up sequence
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Could it be time for a new boiler?
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