For what it’s worth, this is one of those things that is a “they don’t make them like they used to.” 8-12 years is life expectancy for current models. Ours went in our first home and I believe it was over 25 years old. Thankfully, that was a first floor garage set up. The one in our second house, which was brand new construction, lasted about 8. That was in the attic of a 2 story house.
The one in our current house broke in September. It was 12 years old. The plumber said we could just fix the part that went but with the age of the unit, and the high cost of the part, replacement was advised. This was the most expensive to date. Attic of 2-story house, tucked in behind a bunch of beams, resulting in an extra labor fee.