R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

Reply
 
Thread Tools Search this Thread
Old 09-11-2008, 03:52 PM   #1
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default Is my ESC toast?

I've been sick as a dog and bored, so I decided to swap out my esc wiring with Wet Noodles.

My soldering iron is only a baby, and it took a while to get all of the old build-up off a few of the posts. I didn't heat them for too long at a time, but it took ages to get most of the gunk off.

Anyway, by the time I got the new wires on, hoked it up, and ran it on a stand, I started getting smoke. Damn. Only a bit so I stopped, gave it 5 minutes and got PO'd, so started it up again. The smaller heat sink was scorching, so I unhooked it agian.

Now, by this stage I was getting grumpy as I spent a good deal of time tidying it up, so I let it cool down and then hooked it up and took it outside.

It didn't get hot, but has no brakes.

Any ideas?

I'm in NZ, and guessing it's too much cost and trouble to get it sent 1/2 way across the world for repair!
JR007 is offline   Reply With Quote
Old 09-11-2008, 04:02 PM   #2
Tech Master
 
kdeselms's Avatar
 
Join Date: Jun 2008
Posts: 1,019
Default

I'd make sure there's no stray solder connecting two solder points...but if you already got smoke, something in the ESC definitely poofed. When it comes to electronics, smoke means something died a fiery death - there's no "almost" dead. If you accidentally created a short with some stray solder, that'd do it.
__________________
Kevin Deselms
Associated Factory Team SC10
Webmaster, www.hotrodhobbies.com
kdeselms is offline   Reply With Quote
Old 09-11-2008, 09:13 PM   #3
Tech Master
 
theanimaleide's Avatar
 
Join Date: Jan 2007
Location: St Louis Park MN
Posts: 1,138
Trader Rating: 10 (100%+)
Default

i forgot what the name is exactly but there is a part that will blow on the speedos that kills only the brakes.....so yeah you prob will need a new speedo. just make sure to reset everything and to make sure all the wires are connect correctly first.
__________________
Aaron Eide

Wells Fargo Home Team
theanimaleide is offline   Reply With Quote
Old 09-11-2008, 11:42 PM   #4
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

Yeah, thanks for that guys. I figured it was dead.

I opened it up, and the solder on the PCB looked as though it had heated up and spread out a bit. I'm guessing it's now to be binned.

It was the small heat sink that was scorching, and i'm guessing that the large sink is for forward, and the small one for reverse. May be completely wrong, but it's irrelavent now!
JR007 is offline   Reply With Quote
Old 09-12-2008, 05:49 AM   #5
Tech Addict
 
Join Date: Apr 2008
Location: Evansville, IN
Posts: 671
Trader Rating: 6 (100%+)
Default

If you're running brushed motors, I have a brand new in package Novak GT7 that I will sell for $75 USD shipped.
JLinney is offline   Reply With Quote
Old 09-12-2008, 01:51 PM   #6
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

Thanks for the offer, sounds like a good deal, but I think i'll use this as an excuse to go brushless
JR007 is offline   Reply With Quote
Old 09-12-2008, 02:08 PM   #7
Tech Master
 
Join Date: Sep 2007
Posts: 1,644
Trader Rating: 67 (100%+)
Default

Sounds like you burned out the brake fets. If the speedo is Novak, you can return it and exchange for a factory refurbished with a new warranty or you can upgrade to a newer better ESC. Fee is very reasonable.
nutz4rcyktw is offline   Reply With Quote
Old 09-12-2008, 02:22 PM   #8
Tech Fanatic
 
RC Corral's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2007
Location: Waukesha, Wisconsin
Posts: 777
Default

yeah heat sink got hot, you smoked the reversing mosfet. keep it and have no brakes/reverse or send it in for repair/refurb.
RC Corral is offline   Reply With Quote
Old 09-12-2008, 08:43 PM   #9
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Smile

Thanks for that nutz, i'll look into it.

If all else fails, I guess I could just use it as forward only. No brakes, that's how real men ride
JR007 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sydney Model Autosports Inc [smaracing.org] The Ideas Man Australian Racing 25432 10-18-2017 12:09 AM
Mamba Monster's Issues/Not Working Drift_Buggy Electric Off-Road 70 04-20-2017 10:18 PM
QCRCCC OFF-ROAD RACING emer Manila Racers 16543 04-08-2016 01:31 AM
Speed Passion 1/8 scale brushless Applesauce Electric Off-Road 1000 02-28-2013 09:09 AM
Ko Propo VFS-1 ESC Hebiki Electric On-Road 2492 10-14-2012 08:51 PM
LRP SXX TC SPEC Stein Tumert Electric On-Road 190 08-20-2012 05:52 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 11:23 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net