This is an alarm for descaling. This machine is equipped with a descaling alert: GREEN and RED steady light. Machine can only be operated to make coffee a few more times once the alert appears before descaling becomes mandatory.
> Click here to check the video how to descale Vertuo Plus
Additionally, there are videos for how to handle flashing buttons of Vertuo Plus. Please check the link below.
> How to handle flashing buttons of Vertuo Plus
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