When it comes to customer support Vento has a lot to learn. Shortly after I got my Triton Li I had contacted the company as my machine didn't come with an owner's manual and I was interested in obtaining a service manual as well. I was advised to call back as they were currently none in stock. After a couple of months I called back and got an answering machine. To date my message hasn't been returned. A follow up e-mail went unanswered as well. Best of luck in your quest.