Failure of performance upgrade RipCurrent S (V2) controller

[Chazmo]

Hi again, folks,

I bought the performance upgrade controller for my RipCurrent S (RCS) last year — the 12 transistor model vs. the stock 9 transistor — and installed it on my RCS. Recently it failed on me and I’m wondering if anyone has any knowledge/skills on how to diagnose and fix it. I’d welcome any help on what to do, if there are suggestions/experience.

The controller worked perfectly until I (mistakenly) pressure washed the bike. I let it dry and gave it several days to correct itself but it never did. Shortly after I washed it, it exhibited the following symptom…

The display of speed would go insane as soon as the motor was engaged. By “insane” I mean that it would show extremely high speeds and bounce around to the point that I couldn’t use the bike because it would stutter power to the motor and would cut out completely under pedal assist. I think the throttle (by itself) was working [edit: no, ignore that… the throttle was doing the same thing as pedal assist], but that’s not how I ride and something had clearly “broken.” It was not throwing any error code either. Oh, and when I turned off assist entirely, the speedo was correct. I replaced it with the stock controller, which works fine and proves that something is wrong with the performance controller, not the torque sensor. But, I would really like to have the extra power and the rear brake light back though, hence the post here.

Anyway, does anyone have any experience with these, design or spec? I have the installation guide spec, but nothing about the design.

Thanks in advance, gang.

 

[Chazmo]

Does anyone know how to get the electronic circuitry out of the case so I can inspect it. Man, they sealed this thing up with silicone gaskets to survive nuclear winter, but I can’t figure out how to open the thing up… I’ve removed 11 Philips head screws that seem to be all that there is and I have removed the end covers, but the case itself seems to be a metal box that doesn’t crack open or anything, and I don’t know if it’s just the sealant that’s holding the circuitry in place in the box… There doesn’t seem to be any give when I pull on the wires, and I don’t want to damage the circuitry by pulling too hard.