KeyChoc Infinity AX and BX automated tempering machines operate a little different. The bowl / tank melting temperature setpoint (42C to 45C) is only when the machine is not in temper mode. When you initiate tempering it will lower the working bowl / tank temperature to about 3 degrees above the working setpoint temperature. It will not try to decrystallize the working bowl / tank while in tempering mode. So, after while your chocolate will start to visibly thicken which is basically overseeding.