I THINK I know where you'd connect the cartridge fuse according to your instructions, wouldn't that leave an incomplete circuit where the F1 fuse is currently? Or do you bridge that with solder if you go this route. Would you be able to share the specs of the fuse that I could wire in between thermistor+ and endstop GND? I'm thinking I'll go that route.
I'm entirely positive it wasn't a cartridge issue, I had been working on the bed all day and never even warmed the hotend. Apparently something shorted my bed thermistor.
Also, what happened here is symptomatic of a blown VSSA fuse right? Everything is fine except both thermistors throw faults.