Different issue.

Mini splits just generally aren’t designed to be overly serviceable from the start. Unlike a traditional central AC system where the components are usually fairly universal and can be mixed and matched, they’re generally proprietary and model specific with the model lines refreshing every year or two with little to no parts compatibility between refresh cycles.

Lots of small plastic parts and clips, delicate mechanisms with tight tolerances and electronics that fail with the slightest power surge or just from normal use due to being designed so tightly to spec for efficiency.