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Old 09-16-2006, 06:12 PM   #1
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Default How to Tell if ESC is FRIED!?

Went to my local track today and everything was going fine. Plugged in another battery and go out to have the car get hit and battery popped out. Pick up the car and smells like a motor frying. I couldn't imagine why since everything was wired in right. Unplug everything and looks like on of the cells on my battery called it quits as an edge was now black, left a nice burn on the 415's chassis, and smelled like the burning motor I had described.

However, before everything was unplugged, the car started to creep along like it was moving but the radio was turned off and so was the car. How does that happen? Put that with the battery issue and it was a bad day. Is my ESC done? How could I check? Anyone had this issue before? Car is off, but it still goes??? Ghost car?!?!?!
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Old 09-16-2006, 06:17 PM   #2
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Hire an exorcist. Try running the motor on another car and esc and if it doesnt work, then the motor got fried. Then vice versa for the esc.
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Old 09-16-2006, 06:37 PM   #3
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You are shorting on the graphite.Check all of your battereis and make sure their is no metal spots showing.If their are and try to get some individual cell shrink wrap or use electrical tape for the time being on the spot.You probley just killed the battery(it smells like a fried motor).It could have turned into a major problem because your whole car could have went up in flames due to grafite being a semi conductor.You could of had a really bad day. The esc and everything else should be fine but the only way to check is run your car.
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Old 09-16-2006, 06:57 PM   #4
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WOW thanks for the help. That batttery is toast....still smells over 4 hours later too.

Just tried the car and it ran for about a second then nothing.... I think the esc is toast since the servo won't even move now. Sometimes this hobby really gets to me....
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Old 09-16-2006, 07:13 PM   #5
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Or maybe your reciever and servo broke too! :O

Sounds pretty dead to me. Never heard of a car moving while switched off, for that to happen the speedo must have gone totally wrong and somehow the switch bypassed. :S spooky.
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Old 09-16-2006, 10:07 PM   #6
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did you go to tamiya today?
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Old 09-16-2006, 11:07 PM   #7
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Yep went to tamiya today. Wasn't a very good day at all.....

Looks like the servo is fried too. Luckily Novak and Futaba are close by, but thats about a $300 loss in one day. Looks like the 415 will be on the shelf a while. Sure glad my $40 receiver survived lol

Anyone had this happen?
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Old 09-17-2006, 12:59 AM   #8
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I have never had this type thing happen. It sounds crazy and I do not blame you for being ticked off. Just be carefull and not get so frustrated to quit. We don't want to lose a fellow hobbyist.
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Old 09-17-2006, 01:05 AM   #9
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Oh trust me, if I quit over stuff like this, I would have quit a LONG time ago. I think everyone knows how something like this feels. Just costs a lot of time and money, and you feel dumb. It happened, and I am going to see what can and can't be fixed. I know Novak tends to have some good deals on replacement ESCs which is nice.

I will try to have a pic of the battery and chassis up tomorrow so people can see the damage.
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Old 09-17-2006, 02:06 AM   #10
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Well, as far as I know you need 2 places where the cells are connected to the graphite (duh), and since your electronics is fried and the car was moving somewhat, can it be that there was something else hitting the metal parts on the car (who in their turn are screwed to the chassis and make a short).

Prolly something like that caused your whole electronics to fail (imagine an esc with soldering tabs against one of the bulkheads...). Strange about the servo though, you'd think if that died, the receiver died as well.
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Old 09-17-2006, 12:57 PM   #11
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I would think that too, but I tested the receiver in another car and everything works, but when I then plug in the servo its a no go. Very wierd though I am still testing somethings to make absolutly sure whats broken and what isn't.
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Old 09-17-2006, 02:07 PM   #12
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Here are a couple pics. Sorry for the poor quality.
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How to Tell if ESC is FRIED!?-1.jpg   How to Tell if ESC is FRIED!?-2.jpg  
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Old 09-19-2006, 04:26 PM   #13
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I have seen advertised a complete 4.5 Novak Brushless system for 239.00 which should make your car fly if it had wings. My local hobby shop said they would install it and everything for $250.00 which is not bad if it lasts for a long time.
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Old 09-19-2006, 05:08 PM   #14
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If the case is orange, most likely it's burnt up.
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Old 09-19-2006, 06:31 PM   #15
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Brushless is sweet and all, but I am running this car in a 19T class so that won't do me any good.

No orange cases or smoke, but it doesn't go anymore.
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