Will Blown Diode Cripple Cart?

Doc · 11-19-2009, 03:14 PM

On my 2000 CC Carryall 48V cart, it hasn't moved since this past Summer...would this diode, or the smaller one for that matter, cause the cart to not move if it was blown? When you step on the "GO" pedal, the larger diode gets VERY hot...any thought? Thanks!
Doc

redriderno22 · 11-19-2009, 03:25 PM

its not a diode its a resistor

and yes it could be the cause for it not running

redriderno22 · 11-19-2009, 03:26 PM

does the solenoid click when you push the pedal?

cheapjeep2 · 11-19-2009, 03:40 PM

While it could it is highly unlikely. All the resister does is slow the charge of the capacitors in the controller to prevent arching...

PRE-CHARGE RESISTOR is a device that
slowly charges the capacitors within the
electronic controller. Without this resistor,
closing the contactor would generate large
amounts of current and arc the contacts.

cheapjeep2 · 11-19-2009, 03:41 PM

Quote:

Originally Posted by cheapjeep2

While it could it is highly unlikely. All the resister does is slow the charge of the capacitors in the controller to prevent arching...

PRE-CHARGE RESISTOR is a device that
slowly charges the capacitors within the
electronic controller. Without this resistor,
closing the contactor would generate large
amounts of current and arc the contacts.

In other words you could remove it and the cart would still function, although it's not recommend due to arching.

Doc · 11-19-2009, 06:06 PM

Quote:

Originally Posted by redriderno22

does the solenoid click when you push the pedal?

No, it does not click.

Doc · 11-19-2009, 06:22 PM

I should also add that the following items have been tested/replaced:
Controller
Batts tested between 8.2-8.4 volts. All are well maintained and have never been discharged to dead. They're '06's
All wiring is clean and tight.
I might add, however, that the problem started when the blue wire on the F/R switch was pulled away from it's lug and nearly severed. I re-crimped and cleaned it
The motor spins freely and I tested it W/a 12V source. It spun freely, albeit slowly
No brakes are hanging up
I have not replaced the OBC as its a bit expensive and the controller wasn't exactly cheap. That is th only original part that I didn't replace.
The solenoid is also original but would it really cause the problem that I'm having?
The symptom of the problem is this:
Key on, when you put the cart in forward, the cart will attempt to move about an inch then nothing. No smoke, sounds or smells. Remember that the resistor I mentioned gets very hot. I jacked the cart up on all 4's and no difference. Wheels move about a 6th of a turn then nothing. I can't let this get the better of me, if anyone has ANY ideas on what to test next I'm all ears!
Doc

gornoman · 11-19-2009, 06:33 PM

Have you tried jumping the large posts of the solenoid with a 6g wire?

Doc · 11-19-2009, 06:46 PM

Should I do that with the key on and in 'forward'? What should I look for when doing that? Thanks~
Doc

DOOmsman · 11-19-2009, 06:59 PM

On Jack Stands

11-19-2009, 03:14 PM	#1
Doc Gone Wild Join Date: Apr 2009 Posts: 312	Will Blown Diode Cripple Cart? On my 2000 CC Carryall 48V cart, it hasn't moved since this past Summer...would this diode, or the smaller one for that matter, cause the cart to not move if it was blown? When you step on the "GO" pedal, the larger diode gets VERY hot...any thought? Thanks! Doc
Doc Gone Wild Join Date: Apr 2009 Posts: 312

11-19-2009, 03:25 PM	#2
redriderno22 let it SNOW Join Date: Apr 2009 Location: Marengo OHIO Posts: 871	Re: Will Blown Diode Cripple Cart? its not a diode its a resistor and yes it could be the cause for it not running

11-19-2009, 03:26 PM	#3
redriderno22 let it SNOW Join Date: Apr 2009 Location: Marengo OHIO Posts: 871	Re: Will Blown Diode Cripple Cart? does the solenoid click when you push the pedal?

11-19-2009, 03:40 PM	#4
cheapjeep2 Gone Wild Join Date: Nov 2008 Location: Peachtree City, Georgia Posts: 1,546	Re: Will Blown Diode Cripple Cart? While it could it is highly unlikely. All the resister does is slow the charge of the capacitors in the controller to prevent arching... PRE-CHARGE RESISTOR is a device that slowly charges the capacitors within the electronic controller. Without this resistor, closing the contactor would generate large amounts of current and arc the contacts.

11-19-2009, 06:22 PM	#7
Doc Gone Wild Join Date: Apr 2009 Posts: 312	Re: Will Blown Diode Cripple Cart? I should also add that the following items have been tested/replaced: Controller Batts tested between 8.2-8.4 volts. All are well maintained and have never been discharged to dead. They're '06's All wiring is clean and tight. I might add, however, that the problem started when the blue wire on the F/R switch was pulled away from it's lug and nearly severed. I re-crimped and cleaned it The motor spins freely and I tested it W/a 12V source. It spun freely, albeit slowly No brakes are hanging up I have not replaced the OBC as its a bit expensive and the controller wasn't exactly cheap. That is th only original part that I didn't replace. The solenoid is also original but would it really cause the problem that I'm having? The symptom of the problem is this: Key on, when you put the cart in forward, the cart will attempt to move about an inch then nothing. No smoke, sounds or smells. Remember that the resistor I mentioned gets very hot. I jacked the cart up on all 4's and no difference. Wheels move about a 6th of a turn then nothing. I can't let this get the better of me, if anyone has ANY ideas on what to test next I'm all ears! Doc
Doc Gone Wild Join Date: Apr 2009 Posts: 312

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11-19-2009, 06:33 PM	#8
gornoman Stay thirsty my friends! Join Date: Jan 2007 Location: Suburban Chicago Posts: 24,291	Re: Will Blown Diode Cripple Cart? Have you tried jumping the large posts of the solenoid with a 6g wire?

11-19-2009, 06:46 PM	#9
Doc Gone Wild Join Date: Apr 2009 Posts: 312	Re: Will Blown Diode Cripple Cart? Should I do that with the key on and in 'forward'? What should I look for when doing that? Thanks~ Doc
Doc Gone Wild Join Date: Apr 2009 Posts: 312

11-19-2009, 06:59 PM	#10
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: Will Blown Diode Cripple Cart? On Jack Stands

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