Most likely marriage, but spare parts are not available. I applied to the warranty service twice, twice they gave an act for a return. The price for it has doubled. market does not go to the meeting, offers to return 8300. And they can’t tell me what to buy for them, support works disgustingly! The client is generally purple! Was in stock, asked for a replacement, so they held out until they were dismantled ! You'll have to go to court. Think twice before ordering from this site!