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05-08-2014, 06:42 PM | #1 |
Gone Wild
Join Date: Sep 2013
Location: Spartanburg, SC
Posts: 291
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Hooked up new components and got 4th of July
I may have screwed up royally. When I got everything (new controller, reversing contactor, wires) hooked up and hit the gas I got huge pops and sparks. Seemed to come from motor contacts. I was a little uncertain about motor contacts because I had two different diagrams and my reversing contactor was set up differently from the diagram and my old one. I think what I really need to know is what does each of the contacts on the motor do. What controls F/R? What supplies power? I'm going to be sick if I fried my new components.
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05-08-2014, 07:01 PM | #2 |
Gone Wild
Join Date: Sep 2013
Location: Spartanburg, SC
Posts: 291
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Re: Hooked up new components and got 4th of July
Update.... I see evidence of electrical problems on the solenoid. Looks like I may have reversed input and output on solenoid. Could that cause all the fireworks? Is solenoid fried?
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05-08-2014, 07:11 PM | #3 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: Hooked up new components and got 4th of July
Is the solenoid diode blown up? It could have been hooked up backwards. Besides that, both the small terminals and large terminals don't care which way they're hooked up. I'm not sure what you mean by input and output. I assume you're talking about the solenoid, and not the reversing contactor?
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05-08-2014, 07:16 PM | #4 |
Gone Wild
Join Date: Sep 2013
Location: Spartanburg, SC
Posts: 291
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Re: Hooked up new components and got 4th of July
Thanks for responding. I looking at one diagram that has positive coming in from left side and another from right side. So yes I could have resister reversed. Could that be it?
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05-08-2014, 07:21 PM | #5 |
Gone Wild
Join Date: Sep 2013
Location: Spartanburg, SC
Posts: 291
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Re: Hooked up new components and got 4th of July
Probably should have said diode. Which one is big, which one is small? Neither seem to be blown up but black marks all around small terminal where small connects.
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05-08-2014, 07:45 PM | #6 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
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Re: Hooked up new components and got 4th of July
Diode is polarized, and connects to the small terminals. The resistor is the big one on the big terminals, and it doesn't care which way it's connected (non-polarized).
To test diode, you can simply remove it. If there are no more sparks and it works, cheap fix. Just replace it. |
05-08-2014, 07:47 PM | #7 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
|
Re: Hooked up new components and got 4th of July
Also, double check the small wiring.
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05-08-2014, 07:53 PM | #8 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
|
Re: Hooked up new components and got 4th of July
When you remove the diode, if it blew up, it's generally visibly cracked or maybe even burned in half. If you have a DMM, set it on ohms and check both directions. You should read almost no resistance in one direction and a LOT in the opposite direction.
Safer test than the first test I recommended, which could result in sparks if the wiring is wrong. |
05-08-2014, 08:04 PM | #9 |
Gone Wild
Join Date: Sep 2013
Location: Spartanburg, SC
Posts: 291
|
Re: Hooked up new components and got 4th of July
Turtle,
Thanks so much for your help! Got it going. Had the diode backwards. Can't believe it could have caused that kind of fireworks and didn't fry anything. My nerves are shattered. I guess I know just enough about electrical stuff to be dangerous. All you guys on this forum are awesome. Going to need a drink now! |
05-08-2014, 08:18 PM | #10 |
Gone Mad
Join Date: Oct 2009
Location: Buford, GA
Posts: 8,988
|
Re: Hooked up new components and got 4th of July
I'd replace the diode. It's shot. Probably blown in half internally. For short runs it won't hurt to run without, but it will make your solenoid contacts last longer.
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