Connected to test socket, FI out. Outlet checked ok. Repetition, FI out. Power failure was confirmed by Schreiber. Answer by Computer action: If the FI is usually the terminal has a Schaden..bedaure the defect. Sent Return adhesive with a manual. Steckdosenleiste returned, called for repayment. 4.10 were withdrawn. Computer action: "Since we could find absolutely no defect in the socket, the service has gone from a cancellation in which case you have to bear the cost of returning Actually, you would also have to bear the verification costs..." Which terminal was probably in the socket has connected as the FI?