This right here, there’s not a whole lot on a PCB that can “explode” on their own, and caps is at the top of that short list. And early 2000s, 90s caps are notorious for this issue
Next ECU you get @Badabinski@kbin.social, check the caps or just replace them anyways. Even high quality ones are not very expensive
I use mine all the time, much easier than dealing with a nasty sink strainer as I just spray down the sink into the disposal and run it. Also keeps the trash from smelling.
If it’s being smelly under the sink, it’s broken or not installed right. If it’s being smelly from the drain hole sink side then you’re not cleaning it from time to time (Which is as easy as dropping in some cleaner and running it every other month or so).
I’m actually looking to upgrade mine so it can handle some bones