Low
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.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Last default occured

From this model's manual
Verified against the Chaffoteaux Calydra 23 Green installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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