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Unread 06-08-2015, 12:40 PM   #1
Not Yet Wild
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Default Charger problems

Charger quit charging. Batteries were 9 years old. Just bought 6 new 8 volt batteries and installed. Plugged the charger in, and still nothing. Showing 49.7 at install time on the Scotty meter. Will drop down to 46.7 while in use. Even at full charge, which these aren't, shouldn't the charger kick on? I get a click every now and then from the charger, but it will not kick on. I have done the unhook the negative cable for 10 min to reset the OBC, and the unplug from the wall and replug thing. Nothing works. Other than finding someone with the same charger I have to check it, is there another way I can check the charger to see if it's bad? Has always worked until now. Or could it possibly be the receptacle plug on the cart itself that has gone bad?
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Unread 06-08-2015, 06:05 PM   #2
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Default Re: Charger problems

It could be the recept/plug on the cart try spraying it with a little WD40 and plugging it in firmly a few times... Are you sure that when you changed the battery that the small red charging wire got reconnected to your main (+) terminal? It is common mistake as it can fall down and get lost among the batteries...
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Unread 06-08-2015, 06:09 PM   #3
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Default Re: Charger problems

Charging System Troubleshooting: (Charger Won't Turn On)

1. The first step would be to make sure the vehicle has enough voltage to trigger the charger turn-on signal from the on-board computer. Check the battery voltage of the entire battery pack with a digital volt meter. Put the positive lead on the MAIN positive battery post and the negative lead on the MAIN negative battery post. Total voltage should be at least 36-38 Volts. If it's not, you must boost the batteries individually. Contact me for further instructions on how to do so. If you do not have a digital volt meter you can perform this test by attempting to run the vehicle. If the vehicle has enough energy to make the solenoid switch "click" and attempt to run, it also has enough energy to engage the charger relay. This step may be skipped.

2. The next step is to check all wiring. Locate the charger receptacle of the vehicle. On the back of the charger receptacle you will see three wires. Red is the positive. Black is the negative. Grey is the On-Board computer control wire. Make sure that the red wire is in good shape and follow it all the way to the MAIN positive battery post. Make sure there is a good connection on the battery and ensure that the wire isn't corroded or broken. If it is, clean it and re-attempt to charge the vehicle. The black wire is not at risk of corrosion because it is wired directly into the on-board computer. As for the grey wire, give it a light pull outward and ensure that isn't broken inside the charger receptacle. The grey wire will often break inside the receptacle and will easily pull out the back. If this happens, you must replace the receptacle.

3. If you have a Club Car DS or Carryall vehicle you will have two fuses to check near the charger receptacle. One is an inline fuse located on the grey control wire mentioned in step two. It is located inside a yellow rubber fuse holder. Pull the fuse holder apart and check the fuse with your meter to ensure that there is continuity. If the fuse is bad, replace it with a 3/8 amp fuse. Anything else will damage the charging system. There is also a larger fuse bolted to the back of the charger receptacle. You'll see that there are two black wires bolted to the back of the receptacle. This is where you'll find the fuse. On the opposite side you'll see a fuse element inside a plastic window. Check this fuse with a multimeter as well. On the continuity setting, place each lead of your multimeter on each of the nuts where the black wires are bolted to the back of the receptacle. If you have continuity, the fuse is good. If you don't, replace the fuse.

4. Check the charger relay. Pull the cover off of the charger and locate the relay. On PowerDrive 17930 models you'll find the relay on the bottom floor of the charger at the front. On PowerDrive2 22110 models you'll find it bolted to the front wall of the charger above the circuit breaker. Make sure both power cords are unplugged from the charger and pull the blue wire and red wire off of the charger relay. If you look closely at the relay you'll notice that there are four posts. Two large posts, and two small posts. These red and blue wires are plugged into the smaller two posts of the relay. Once you've gotten them unplugged, set your multimeter to check for DC voltage and insert the leads of the multimeter into the ends of these two wires that you unplugged from the relay. Plug the cord into the golf cart. It is not necessary to plug the other cord into the wall. Within 2-10 seconds of plugging the cord into the cart, you should see full battery voltage on the screen of your meter. If so, this is an indication that the on-board computer is communicating with the charger and commanding the relay to turn on. If your charger hasn't been "clicking" on, replace the relay. If you don't see a change in voltage on your screen when this test is performed, this is an indication that the on-board computer has failed and is no longer able to communicate with the charger. The on-board computer must be replaced.
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Unread 06-09-2015, 10:30 AM   #4
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Default Re: Charger problems

Great info...should be a "sticky" !!
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Unread 06-09-2015, 05:01 PM   #5
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Default Re: Charger problems

The WD 40 didn't work, and yes, the red charging wire is connected. The Scotty Meter is showing a charge of 49.5 with the new batteries installed. It will drop to a low of a little over 47 while driving the cart
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Unread 06-09-2015, 05:14 PM   #6
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Default Re: Charger problems

And the results of troubleshooting steps #2 thru #4?
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Unread 06-09-2015, 05:39 PM   #7
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Default Re: Charger problems

Awesome response, David. I have went thru the first 3 steps so far. The voltage is 49.4 right now for the step 1 check. Step 2 also checked out as all of the wires are connected and not broken. The step 3 check showed that both of those fuses are good with the meter check. All that's left is to take the cover off and check the charger for step 4. I do have a small black reset button on the lower front of the charger. It almost feels as if there is nothing connected to it from inside the charger. It's got no resistance at all when pressing the reset button. Can't feel anything at all. I will check this out tomorrow, but from the other steps I've tried, I think it's pretty much come down to the relay inside the charger or the OBC. Would that be your conclusion also?
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Unread 06-09-2015, 07:31 PM   #8
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Default Re: Charger problems

I agree. It's one or the other. As soon as you test for power at the relay coil you'll know which one.
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Unread 06-09-2015, 07:48 PM   #9
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Default Re: Charger problems

Quote:
Originally Posted by theboss20 View Post
Great info...should be a "sticky" !!
Agreed, a compilation of these procedures as this one should be set aside where regular Joe's can get help without the pros having to explain over and over. I know having a ton of stickies could be overwhelming but man it sure can save lots of time.
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Unread 06-09-2015, 09:18 PM   #10
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Default Re: Charger problems

Maybe they could be compiled in one sticky named Tips & Troubleshooting. BTW I'd like to think there's a few Irregular Joes out there too!
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