The coffee maker needs to be descaled.
Do you need descaler? Delonghi's EcoDecalk has been specifically designed with your machine in mind. Using this descaler regularly will prolong the lifespan of your machine and keep it running at optimal performance.
Follow the guide below for descaling instructions:
If the water in your area is hard, limescale builds up over time. These deposits may affect correct operation of the appliance.
You are recommended to descale the coffee maker every 60 coffee making cycles.
To descale, always use De’Longhi descaler or special commercially available descaling products for filter coffee makers.
Then turn the appliance off.
Failure to clean as described in these steps invalidates the guarantee.