[djustice]

If it was a short, would that not blow the new fuse too?

[lfdsteve]

Originally Posted by djustice

If it was a short, would that not blow the new fuse too?

Well, it didn’t just “let go”. Something put greater than 30 amps through that line or the commensurate amount of resistance/ heat to melt the fuse.
Very well could be something that’s intermittent or “brewing”. I chased an issue where my engine would intermittently decide it didn’t want to shut off. Weeks of trouble shooting including replacement of key switch ect. Finally grabbed a thermal imager camera and found a mass of melted wires right after the engine bay wire harness block. Would never have found it without the camera. Point is, we know several things. 1. A 30 line fuse blew leading to a micro processor. 2. That micro processor is now wonky. 3. Power spikes and or heat kill micro processors. 4. Micro processor’s don’t create electrical charges.
Coincidence? Perhaps but I would focus my attention on your work, not the company’s.
Hope you get yourself up and running soon!
Happy 4th!