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Old 09-02-2013, 07:34 PM   #1
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reversed wires while changing light switch. circuit blew. damage?


While trying to change a light switch, I switched the wires which caused a spark and the circuit went out. Could I have damaged electronics on that circuit or damaged wiring in the building or do I just need to change the fuse bulb and everything will be fine?

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Old 09-02-2013, 07:48 PM   #2
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reversed wires while changing light switch. circuit blew. damage?


Why are you changing switches hot?
Just reset the breaker or replace the fuse.

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Old 09-02-2013, 08:05 PM   #3
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reversed wires while changing light switch. circuit blew. damage?


How did you reverse the wires in a switch? Your stuff should be fine. I don't recommend you change anymore switches cause you could damage electronics by constantly doing that

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Old 09-02-2013, 08:28 PM   #4
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reversed wires while changing light switch. circuit blew. damage?


The wires got switched because after wiring it normally the light didnt work so I stupidly thoufht maybe try hooking the wires up reversed. Then when I turned the power on it sparked and the power on that circuit died. I need to get the right fuse to replace the fuse but in the mean time am wondering if the tvs, computers, audio equipment, etc on that circuit might have gotten damaged.
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Old 09-02-2013, 08:38 PM   #5
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reversed wires while changing light switch. circuit blew. damage?


Very unlikely---sounds like you had a dead short---power surges kill equipment,so I bet you are fine.
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Old 09-02-2013, 08:52 PM   #6
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reversed wires while changing light switch. circuit blew. damage?


Unless they have MWBC ( Multi wire branch circuit ) some case it will affect some of the electrique items and with MWBC's the netural conductor can take a lot of blunt but not always the case.

Pour Le OP.,, ( for the OP )

There is a reason doing the switch change when the source is still on ??

If you did get black et white transponed you will open new cans of worm.

If this switch a single pole it very easy to swap a new switch without issue.

If this is 3 way switch then you will have to pay attetion to which conductour is common and other two is shuttle ( traveller )

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Old 09-02-2013, 08:56 PM   #7
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reversed wires while changing light switch. circuit blew. damage?


The original switch had two screws to connect wires on the right side. The new switch had 2 plus one more on the left side. But there are only two wires. Could this be why the switch didnt work?

By the way I did turn the circuit off before changing the switch.
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Old 09-02-2013, 09:22 PM   #8
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reversed wires while changing light switch. circuit blew. damage?


Quote:
Originally Posted by asterix2k10 View Post
The original switch had two screws to connect wires on the right side. The new switch had 2 plus one more on the left side. But there are only two wires. Could this be why the switch didnt work?

By the way I did turn the circuit off before changing the switch.
Bonjour .,

Ok , did you transfer the conductors from the old switch to the new switch the same way as the old one was ? if so that is correct and the third screw on left what colour it is ??

If that was green then it is a earth ( ground ) screw but if differnt colour let us know right away.

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Old 09-02-2013, 09:54 PM   #9
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reversed wires while changing light switch. circuit blew. damage?


You have a three way switch. You might have connected the neutral or ground to one of the travelers giving you a dead short
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Old 09-02-2013, 09:57 PM   #10
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reversed wires while changing light switch. circuit blew. damage?


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Originally Posted by romex1220 View Post
You have a three way switch. You might have connected the neutral or ground to one of the travelers giving you a dead short
Maybe so but if the OP did mention just two screw on old switch while the new one have three screw and need to confirm which colour the third screw is ( We have a huntch that is earth screw )

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Old 09-03-2013, 01:12 PM   #11
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reversed wires while changing light switch. circuit blew. damage?


rather than waiting for a reply on here, go to your local supply store, get a fuse, and find out for yourself.... gonna have to eventually anyway. best answer to your question that I see

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