Found a stat about capacitor failure rates that really got me thinking
I was looking up some repair logs from a job I did last week on an old stereo receiver and stumbled onto a study from 2019 that said roughly 40 percent of electrolytic capacitor failures are caused by heat damage, not age. I always figured they just wore out over time, but it turns out poor ventilation in tight cases is a bigger killer. I run a small plumbing crew and we deal with similar issues in pumps, so it made sense when I thought about it. Has anyone else found numbers like that that changed how you approach a repair?
I heard a similar stat from a buddy who works on HVAC units, he said over 50% of failed start capacitors trace back to heat buildup from dust or bad airflow. That changed how I look at keeping electronics clean, not just swapping parts. Do you think most people miss simple stuff like vent cleaning?