Issues ajusting hdd temperature thresholds

That may be.
Unfortunately, I don’t know which check applies to your hard disk and how it is built up, so I can’t say where the temperature comes from and how it is taken into consideration in this check.
If you cannot enter any temperature values as threshold values via the “paramter for this service” method, the value may only serve as information.

Is a temperature currently displayed for the disk at all?
Or have you tried to get the temperature into the check via the Rulest? Unfortunately, that won’t work this way.

If you make a discovery on the hosts and let show the plugin names (Display > Show plug in name), which name is displayed there?