I've killed two Alltrax controllers. While I can't speak for the Curtis, the Alltrax were effectively unrepairable as the entire circuit board is encased in resin. However, I imagine any controller that could be potentially exposed to water is potted in resin to repel water.
To do a board repair on such devices means you have to dissolve the resin first and then clean the residue off the board so you can solder. None of this is impossible, but it's labour-intensive. It's often cheaper to just get a new unit.
On Sat, 8 Oct 2022 at 08:10, Anton <antonherbert@earthlink.net> wrote:
Hello,
I have a thunderstruck motor system Ac34 kit in my sailboat.
I recently had a failed contractor and seem to have fried the motor controller. (Curtis 1238-5601)
I was getting error message 37 "motor open".
I spoke with Bill over at HPEVS, when I told him the leads from controller to motor tested good, he right away suspected the controller.
He was going to have me send it in to them to see if they could fix it, but when I told him I could hear something rattling around inside he said sounds like a fried MOSFET and suggested I send it to FSIP in Pa.
FSIP will ONLY do a full reconditioning for $1200.00, tempting as it will come back like new condition with a one year warranty.
But I was curious if anyone knows a place that might just fix what is broken and cost much less, or if any one has opened up the case of one of the Curtis controllers and had any luck replacing burned out mosfet's.
I think FSIP's price to rebuild will be the same even if I was to mess up up even further!
Thank you for any help you can offer!
Anton
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