Vesc Blowen capacitors Help!

ESK8 Electronics
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1

HI, after riding a long time in rain my Vesc got a bit wet. At the beginning it was no problem but after cleaning up the board I got a ton of drv errors and the motor wasn´t spinning anymore.

Foto 02.05.20, 15 47 27
Foto 02.05.20, 15 47 272096×3724 1.75 MB

I cleand the vesc and saw that the c8 cap was blowen. Or more the pcb under it.

Foto 02.05.20, 17 18 27
Foto 02.05.20, 17 18 273024×4032 1.94 MB
Foto 02.05.20, 17 18 27
Foto 02.05.20, 17 18 271373×1227 356 KB

Now the vesc runs again. I don´t get any foult codes. What are thes caps doing? becaus I think it is hard to replace the caps. There is no way I can solder to that anymore. If somebody had the same issue pleas let me know.

2

Looks like you have trace damage from the water, definitely replace the VESC since theyre only $50 and next apply a thin layer of conformal coating to the VESC so its impervious to water ingress.

3

I drove 30 km on the board today and had no problems. I suspect that the capacitors are used to buffer the mosfets. i think i will continue like this.