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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Unread 06-12-2019, 07:15 PM   #61
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Default Re: Haunted 1992 Marathon WOT

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Originally Posted by cgtech View Post
You mean like this?

It won't catch every possible failure, but if any of the high current components are shorted on, it should show.
Thank you CG. I have never seen that. The only one I knew about was a series of light bulbs and such.
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Unread 06-12-2019, 07:19 PM   #62
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Default Re: Haunted 1992 Marathon WOT

Success! The controller worked. Runs smooth as silk.

I learned from this one that a controller could cause a runaway situation. Even WITHOUT a throttle input.

Thanks to all of you guys who helped me with this.

This is a great place!
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Unread 06-16-2019, 01:32 PM   #63
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Default Re: Haunted 1992 Marathon WOT

Were you able to determine any evidence of water entry into the failed controller?
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Unread 06-16-2019, 07:06 PM   #64
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Default Re: Haunted 1992 Marathon WOT

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Were you able to determine any evidence of water entry into the failed controller?
Yes. Had maybe one drop of water in it. And a little condensation.
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Unread 06-16-2019, 07:12 PM   #65
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Default Re: Haunted 1992 Marathon WOT

After carefully opening the case and inspecting delicate components I found a bit of evidence of water entry. That blue thing, whatever it is, had condensation on it.

Seriously, I could never trust this controller again. Not for me or anybody else.
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Unread 06-16-2019, 07:26 PM   #66
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Default Re: Haunted 1992 Marathon WOT

That is one way of "popping" the end plate off

Based on the presence of water inside your controller, your wide open throttle - run away event is almost certainly attributed to the water in your controller ... similar to what I experienced with my Curtis 1219-8405 controller.

Thanks for your postmortem results

A good reason to avoid water ... submersion, pressure washing, puddles or just even water spray on your controller.
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Unread 06-16-2019, 07:29 PM   #67
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Default Re: Haunted 1992 Marathon WOT

I really enjoyed your "careful ingress" into the controller!
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Unread 06-16-2019, 07:33 PM   #68
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Default Re: Haunted 1992 Marathon WOT

I've had decent luck in reviving wet electronic devices, by killing all power, then flushing with distilled water, brushing with a toothbrush if visible corrosion is present, then drying. Doesn't always work, though one made it through 8 +/- hours in a salt water creek. Hurricane salt water submergence for days/weeks/months... YMMV.

I never used a sledge hammer though. You were right. Your case is different than the couple I opened.
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Unread 06-16-2019, 08:11 PM   #69
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Default Re: Haunted 1992 Marathon WOT

Quote:
Originally Posted by ThreeCW View Post
That is one way of "popping" the end plate off

Based on the presence of water inside your controller, your wide open throttle - run away event is almost certainly attributed to the water in your controller ... similar to what I experienced with my Curtis 1219-8405 controller.

Thanks for your postmortem results

A good reason to avoid water ... submersion, pressure washing, puddles or just even water spray on your controller.
Looks like it. Surprised me. It must have had a bad seal somewhere.
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Unread 06-16-2019, 08:13 PM   #70
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Default Re: Haunted 1992 Marathon WOT

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Originally Posted by cgtech View Post
I really enjoyed your "careful ingress" into the controller!
I must have hit that thing a dozen times with that BFSH. Those things are tough!
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