99 Club Car won't run with Converter Hooked Up

lucke69

Hello all again. I have a 99 club car that I installed a 48V to 12V converter in. The problem is that when I had this hooked up and put the cart in forward for the first time, it worked and ran once. Then it stopped making the solenoid click and would not run. I disconnected the negative from the converter and the cart works again. So I troubleshot the issue and found that my 12V out (green wire) had continuity between it and the frame. So I unmounted the converter and the continuity went away.( I haven't tried running the cart with it unmounted yet) My question is......Has anyone else had this issue? do I have to use rubber grommets to mount it? The Red wire goes to the + battery, the negative to the -neg and then yellow goes to Positive with a switch to turn off and on. that's it. I thought it was pretty simple till now. Anyways any help or experience with this would be appreciated.

thanks!

BGW

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mrgolf

You must have a short between the green and the case of the reducer. Just don't seem right they would make a pos wire green.

smokey tennis shoe

My reducer, the red wire has a fuse on it, and is the 12 volt positive, leaving the reducer.

Did yours come with wiring instructions?

lucke69

Hello all, thanks for the help. After plenty of troubleshooting I discovered the issue. My reducer has 4 wires. Black for Neg48V Ground ,Red for 48V Positive, Yellow for turning the Reducer on\off and Green for 12V+ output. I ran wires that way but when I did I had ran the +48V red wire and wire tied it to the 48V Red 4awg cable going to the Positive side. I had continuity from that post to the frame. When I disconnected that Red Reducer wire the continuity was gone. I put it back on and it was there again. So I cut the wire ties from it and ran it separate from that cable, BAM....continuity was gone and my cart worked. My NDI friend told me that Current can cause a separate field on Aluminum frames and told me that is what happened. So it was kind of weird but everything is great now and cart runs good.

Thanks everyone!

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jakesnake27

Cool, glad you got it going...
Awesome cart btw!

crash test dummy

remember when we had this discussion with the 36v cart ... same wiring as 48v

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lucke69

Thanks! Yeah that's the way I have it wired, it just didn't like being wire tied to that 4awg + wire. Weird I know but that was the problem.