A good, tech-nerd read...
https://blog.hopefullyuseful.com/blog/advantage-air-ezone-tablet-diy-repair/
That was impressive.
And also typical. Way back in the 1980s a friend told me that the tech world was moving to "total system failure" and disposable systems and for the most part, he was right.
>tech-nerd read
It was good. Reminds me of something you would do RC.
>disposable systems
This isn't really nerdy enough, but my furnace motor died. The "technician" (they don't call them repairmen anymore) recommended I replace the whole 20 yr old furnace but said he could try and find a replacement motor. Long story short, he "found" a new replacement motor and the furnace works great. Furnaces and hot water heaters sure do not last like they used to and are becoming as disposable as modern dishwashers.