On the H8000, presets and algorithms are the same thing. We call them programs to (hopefully) reduce confusion.

In this, it differs from (say) the Eclipse, where you have a smaller number of algorithms, and a larger number of presets based on them.

On my unit, when I power it up it says "Presets: 1493". I don't see "Programs xxxx". Nor does it change when loading a program.

If you are concerned, please give step by step instructions – what you do, what you see, etc.

I suspect that the number 1800 is marketing hype, which adds 48k presets with 96k only presets. But, I would argue that 1493 is plenty.