Juiced controller repair attempt

[sonoaatta]

I have a Juiced city scrambler ebike that I am trying to repair. I was able to find that the issue is with the controller, and diagnosed that one of the mosfests is dead or shorted to + wire.

I understand the controller is not serviceable as it is fully filled with epoxy. However I did not want to give up, I managed to open it and remove most of the epoxy. Not a surprise as it was not an easy job, it looks like I scratched some of the components at the bottom of the board. I tried to trace the damages and I noticed that two capacitors were missing, I replaced, but I am still getting an error or strange code from the display.

I attached the photo of the controller, and the display, the screen show a flashing battery with 1.1V.

I traced all the wires from display to the board, and all good, with correct voltages (about 54V), the display can read the board temperature sensor as I touched the sensor and I saw the temperature go up on the display. So there is some communications. It does not read speed from the wheel when I spin it.

Any suggestion why it would show 1.1V flashing? also there is a flashing red light on the controller flash for 5 times then stops then flash 5times...it looks like it is giving a code..

Any help would be great, I would like to get this fixed...

 

[Chalo]

If you want a controller that works with the display you have, contact Juiced for a replacement. If you don't care about keeping the same display, get another controller in the right power range, with or without a display.

Unless your time and work are worth nothing to you, repairing a burned controller is folly (even if it isn't potted).

 

[slaphappygamer]

Juiced is gone. Lectric stepped in. Or you can try to contact sales@zenebikes.com. They took over before Lectric took ownership.