We now offer a service to repair your La Specialista (Arte, Prestigio and Maestro) coffee makers when is no cover under the warranty anymore. 
The service include: 

•       Service Box to return your unit for repair
•       Includes prepaid shipping both ways, emailed after purchase
•       Complete diagnostics performed
•       Labor and parts included
•       Complete safety and performance test
•       Professional Cleaning
•       Descaling with De'Longhi Descaler

 
Terms & Conditions:

•      Units are evaluating for repair upon receipt
•      After inspection you will be notify if repair is not possible with additional options
•       3 months warranty on repair if same defect 

 
You can purchase one, based on the model you have, from this link