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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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06-15-2013, 12:31 PM | #1 |
Not Yet Wild
Join Date: Jun 2013
Location: Gulfport Ms
Posts: 8
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A Sizzle Sound/Now a Dead Cart!
O Mighty golf cart GODs--- After making a hard left hand turn to pick up a ball, I heard A sizzle sound and my cart had to be towed to the house-I have checked all batt wires with my meter--getting correct voltage from batteries (37v) checked the speed controller and getting voltage readings all over it--even when u set the test up for the accelerator to be pressed and ur suppose to get a gradual increase in voltage---it starts out at 36v without pressing the accelerator. I believe I have a bad speed controller because of what I think is a open circuit throughout the controller. Any way to test the speed controller once I take it out (off the cart) before I spend $400 and find out that its something else. It is a 2006 ez-go series txt 36v 1206 fivepin 275amp speed controller--
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06-16-2013, 07:04 AM | #2 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: A Sizzle Sound/Now a Dead Cart!
To bench test a speed controller, you have to simulate a cart on the bench.
Unless you plan on bench testing a lot of controllers, just test it in the cart. Jack the rear wheels off the ground and put on jack stands so the half ton cart doesn't take off unexpectedly and run over someone or something. Remove the resistor from across the large terminals of the solenoid. (It sometimes causes confusion when testing and isn't needed for troubleshooting) Connect DVM test leads between B- and M- terminals on controller. Press pedal only until solenoid clicks. You should read FULL battery pack voltage. (Note: At 37V, your battery pack is less than 70% SoC and needs to be charged) If not, there is an open or excessive resistance in high current loop, which is highlighted on the attached schematic. If so, press pedal slowly to floor. Voltage should gradually decrease to Zero. If not, either the controller or the throttle input to the controller is bad. Let us know what you find and we'll proceed from there. |
06-16-2013, 07:25 AM | #3 |
Guest
Posts: n/a
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Re: A Sizzle Sound/Now a Dead Cart!
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06-16-2013, 10:33 AM | #4 |
Master of All Things
Join Date: May 2013
Location: West Columbia, Texas
Posts: 18,001
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Re: A Sizzle Sound/Now a Dead Cart!
sounds like some of the magic smoke got out........
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06-16-2013, 05:01 PM | #5 |
Not Yet Wild
Join Date: Jun 2013
Location: Gulfport Ms
Posts: 8
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Re: A Sizzle Sound/Now a Dead Cart!
Thanks Gods---Going out too test Now!!!! will let u know something soon (If I don't kill myself) Thanks!
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06-17-2013, 12:00 PM | #6 |
Not Yet Wild
Join Date: Jun 2013
Location: Gulfport Ms
Posts: 8
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Re: A Sizzle Sound/Now a Dead Cart!
Ok JohnnieB---here it gos---according to my little $5 DVM from harbor fright tools--I get (as it sets) 3.5v--- I know right there that something is wrong. Right? when I put the red prob on B- and the black probe on the M- --as u press the accelerator it does go down to 0 volts--I did everything u told me to do and my wife read ur instructions as well to make sure I made no mistakes. Yes -I removed the big resistor only from the battery side of the solenoid. Yes there was a clicking sound once u push the accelerator pedal . I do believe that the proper speed controller for this 2003 series (no tow switch) is a 1206 36v 275amp 5 pin--am I right? Do you think we need a new one? If so and since the cart is so old-do u know where I can get an old used one? and when we donate do we get a star by our name or what? Thanks mgh777
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06-17-2013, 12:10 PM | #7 |
Guest
Posts: n/a
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Re: A Sizzle Sound/Now a Dead Cart!
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06-17-2013, 02:59 PM | #8 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: A Sizzle Sound/Now a Dead Cart!
The sizzle sound was likely coming from one of the F&R internal contacts, It is actually a welding sound....Closely inspect the F&R. Remove the hat, get a light and compare the color of the 4 cable terminals on the back side.... is one darker than the others? If in doubt post good clear pics and we will look
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06-18-2013, 04:37 AM | #9 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: A Sizzle Sound/Now a Dead Cart!
Quote:
Like Scotty mentioned, the F/R switch contacts are prime suspects. ----------- As for the controller being good or bad, it's too soon to tell. Got to get the voltage between M- and B- right before controller can be tested. |
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06-19-2013, 01:20 PM | #10 |
Not Yet Wild
Join Date: Jun 2013
Location: Gulfport Ms
Posts: 8
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Re: A Sizzle Sound/Now a Dead Cart!
Thanks a lot guys! I'm an old man and very slow at getting around--I will take the f&r panel off in the morning and inspect it. Have any Idea what a new one would cost? Where should I order it from?
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