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01 to 99 on Chaffoteaux Calydra 23 Green

Your boiler is displaying a log of the most recent error that occurred, which may or may not still be an active issue.

Monitor it

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 default occured

DIY fix possible

Check if the boiler is currently providing heating and hot water.Try resetting the boiler by turning the selector switch to 'Reset' for a few seconds.Monitor the display to see if a specific live fault code replaces this message.

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