new Krakens 2023 have a slightly different header when setting fan speed: - when setting fan speed byte 3 and 4 must be `0x1 0x1` instead of `0x0 0x0` - when setting pump speed byte 3 and 4 must be `0x1 0x0` instead of `0x0 0x0` (but even `0x0 0x0`) works for some reason