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Unread 03-22-2015, 05:10 PM   #1
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Smile What goes wrong inside Curtis controllers?

I hope I am asking this question in the correct place! I would like to open my Curtis controller and rebuild it. Does anyone have information on how to repair Curtis controllers and what parts usually fail. Thanks in advance, ted4420
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Unread 03-22-2015, 09:32 PM   #2
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Default Re: What goes wrong inside Curtis controllers?

I would think the highest failure rate would be the power transistors. They would probably be burnt and unidentifiable. Finding a schematic would be impossible as would be replacing components on a multilayer PCB. But on the bright side there are company's that do repairs like FSIP. Not to long ago somebody posted about repairing his controller. He had his taken apart. I don't remember any search terms but its out there somewhere.

Last edited by jjance; 03-22-2015 at 09:56 PM.. Reason: more
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Unread 03-23-2015, 10:42 AM   #3
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Default Re: What goes wrong inside Curtis controllers?

This article may help explain some issues and help out. Golf Cart Speed Controller Age And Gradual Failure Can Cause Loss Of Speed And Torque
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Unread 04-12-2015, 10:29 AM   #4
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Default Re: What goes wrong inside Curtis controllers?

PIMPY 1,Thanks for the information. Ted
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Unread 06-07-2015, 07:04 PM   #5
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Default Re: What goes wrong inside Curtis controllers?

I have repaired many Curtis 1204/1205 controllers. You will need to replace all the FET's, gate resistors and some times the PNP FET driver on the logic board. The FET's are about $2 each, they all should be replaced, it's risky using old stressed parts.
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