Electrical

Electrical Questions? Ask an Electrician Online.

Ask an Expert,
Get an Answer ASAP!

I have a 3 wire romex with and red wires hot which im trying…

Customer Question
I have a 3...

I have a 3 wire romex with white and red wires hot which im trying to connect to a 2 wire romex which is attached to a light

Contractor's Assistant: Thanks. Can you give me any more details about your issue?

I cant wire it up so the light works

Submitted: 2 years ago.Category: Electrical
Show More
Show Less
Ask Your Own Electrical Question
Answered in 1 hour by:
3/8/2016
Electrician: Kevin, Licensed Electrical Contractor replied 2 years ago
Kevin
Kevin, Licensed Electrical Contractor
Category: Electrical
Satisfied Customers: 4,473
Experience: 31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC General Class License
Verified

Hello and welcome to Just Answer. My name is ***** ***** I will be happy to assist you with your electrical question.

Can you provide some additional details as follows?

1) Does power (circuit feed hot & neutral) originate at the wall switch box or at the lighting box?

2) What type of wall switch controls the light? A single pole switch with 2 wires or a 3-way switch with 3 wires?

3) Do you have either a 2 wire lead AC voltage tester or an AC voltmeter available?

4) Does the light always stay ON or is the light not working?

Ask Your Own Electrical Question
Customer reply replied 2 years ago
1; wall switch
2; a 3way switch
3; no (?) I have a "pen" that lights up if i touch a hot wire
4 light is not working
The switch has power (red white and black wire were connected to the light switch) but does not operate anything so I pulled a 2 wire romex in the attic to a new light fixture and am now trying to get the light to work
Customer reply replied 2 years ago
new light, new 2 wire, running to the switch. Switch is hot (red and white wire))
Electrician: Kevin, Licensed Electrical Contractor replied 2 years ago

Thank you for the replies.

1) At each of the 3-way wall switches, what are the wire colors that terminate to each of the brass screws?

2) On a 3-way switching circuit, there needs to be 3 wires terminating to each switch. Is this what you have?

Ask Your Own Electrical Question
Customer reply replied 2 years ago
No other switches seem to have an effect on this switch red and white stay hot even if I toggle the one other switch that doesnt seem to do anything. But yes it has 3 wires terminating also
Customer reply replied 2 years ago
red and white on the traveler and black on the common
Electrician: Kevin, Licensed Electrical Contractor replied 2 years ago

Thanks for the replies.

1) If power is originating at one of the switch boxes, the white neutral wire is required to be fed thru each 3-way box and extending to the light box. Can't use a white wire as a traveler if the power originated at the 1st 3-way switch box.

2) Refer to the diagram shown below:

3) Is this a brand new installation? Both switches and the light are new or is this an existing installation?

Ask Your Own Electrical Question
Customer reply replied 2 years ago
i dont know where the power originates from/if that other switch is connected to this one. It is an older home and came with the wiring as is.. was trying to install a light fixture tapping into the switch that doesn't seem to do anything.
I found the diagram you sent online and have tried to connect according to the diagram but I obviously don't know if the wires feeding it are wired correctly.. I assume they are..
Customer reply replied 2 years ago
I am assuming wiring was done when they refurbished as they took out walls and re-did some stuff that looks professionally done)
Electrician: Kevin, Licensed Electrical Contractor replied 2 years ago

Thanks for the replies.

1) Any idea if the 3-ways were wired prior to the 1960's?

Ask Your Own Electrical Question
Customer reply replied 2 years ago
definitely not. No knob and tube.. house was built late 80'ies was a showcase efficient home at the time
Electrician: Kevin, Licensed Electrical Contractor replied 2 years ago

OK, reason I was asking about the age was that prior to the 60's it was somewhat common to wire 3-way switches as either Carter or California switched which is a more complicated method as compared to the diagram I sent you.

Since the home was built in the 80's, the 3-ways should have been wired as shown in the diagram as this is the most common method.

You will require either a 2 wire lead AC voltage tester (a contact type) or an AC voltmeter to confirm the functionality of the existing wires. Pen testers sense voltage based on inductance and can easily provide a false indication since they can pick up voltage from other wires within a box.

You should have a 3 wire Romex running between the two 3-way boxes. And a two wire Romex feeding the circuit hot and neutral to one switch and a two wire Romex at the other 3-way box that extends to the lighting box. Just like the diagram illustrates.

Ask Your Own Electrical Question
Customer reply replied 2 years ago
I'm closing the question and getting an electrician to come in and check it all out before my house burns down :)
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an electricianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Mike Your Own Question
Mike
Mike
Mike, Master Electrician
Category: Electrical
Satisfied Customers: 1,426
1,426 Satisfied Customers
Experience: Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Mike is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Mike

Mike

Master Electrician

1,426 satisfied customers

Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Jason

Jason

Service Technician

3,958 satisfied customers

Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Mike G.

Mike G.

Master Electrician

8,290 satisfied customers

Proven Professional 49 years Experience

Kevin

Kevin

Licensed Electrical Contractor

4,473 satisfied customers

31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC General Class License

AssuredElectrical

AssuredElectrical

Master Electrician

3,264 satisfied customers

Contractor-42+ Years in the ElectricalTrade

electrifier

electrifier

Master Electrician

1,458 satisfied customers

Electrical contractor and electrical inspector for over 24 years with phone and networking expertise

Rich

Rich

Master Electrician

1,117 satisfied customers

Over 35 years residential, commercial, industrial wiring, install, troubleshoot, service, maintain

< Previous | Next >

Related Electrical Questions
I'm replacing a 3 way switch this time except the switch has
Hey Sam, So I'm replacing a 3 way switch this time except the switch has more wires than expected. It has 3 black wires and 1 red wire. I have already wired it up but does not work. The light will onl… read more
Sam I
Sam I
Electrician
B.S.
859 satisfied customers
Trying to figure out how to wire my house fan. Three hours.
I have connected the fan to 14/3 romex, and I have it then running to a standard switch.… read more
Sam I
Sam I
Electrician
B.S.
859 satisfied customers
I have aswitches light. The light fixture is simple 1 bulb.
I have a*****switches for 1 light. The light fixture is simple 1 bulb. The wires are white, black, copper ground. In that junction box, there is 2 sets of romex coming in that each have copper ground,… read more
Expert
Expert
Certified Journeyperson Electrician
86 satisfied customers
I am attempting to connect a fan and the light to a levitron
I am attempting to connect a fan and the light to a levitron 5640 switch. I have been stuck on exactly how this should be done properly because I want both the light and the fan independently controll… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
8,290 satisfied customers
I am trying to hook up a light switch, i only have 2 wires
i am trying to hook up a light switch, i only have 2 wires in the outlet and 2 wires on the coming from the light, but when i hook black to black and white to white and ground it, the light always sta… read more
Kevin
Kevin
Licensed Electrical Contractor
4,473 satisfied customers
Brother, I need some help installing a Defiant Daylight
Hey Brother, I need some help installing a Defiant Daylight Adjusting Indoor Digital timer. It's meant to replace the middle switch which controls the outside lights. Attached to the existing on/off w… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
8,290 satisfied customers
My name is ***** ***** and... I am replacing a light fixture
Customer: My name is ***** ***** and... I am replacing a light fixture in our garage... There are 12 fixtures on the circuit... In the box, there are 3 sets of 2 wire romex … read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
I replaced a bathroom light/heat/fan unit in our 35+ year old
I replaced a bathroom light/heat/fan unit in our 35+ year old house. The existing unit worked okay with the light, but the fan (vent) and the heat both made noises and sounded like it was about to fal… read more
canuck the pro
canuck the pro
277 satisfied customers
Installing a ceiling fan w/light where there used to be only
Installing a ceiling fan w/light where there used to be only a light. need to know proper wiring as instructions reference different wire colors than are present in my existing setup. In the attached … read more
Michael Dean
Michael Dean
Antiques and Collecting
103 satisfied customers
Bought a new pendant light fixture to hang over stair case.
Bought a new pendant light fixture to hang over stair case. 3-way switches at top and bottom of stairs. Followed instructions for red to red, bare copper to bare copper, one black to one white then li… read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
I had a carport installed and wanted to install an overhead
I had a carport installed and wanted to install an overhead light and a security light. There is an existing light by the rear door that is controlled by a swith inside the home. I had an electrician … read more
Rick
Rick
Owner
High School or GED
467 satisfied customers
I replaced a fan/light in my bathroom. The old fan had a double
I replaced a fan/light in my bathroom. The old fan had a double switch, with one controlling the light, and the other controlling the fan. The new fan also has a nightlight, and I purchased the triple… read more
Krebs
Krebs
16 satisfied customers
im trying to wire up a ceiling fan. the power coming into the
im trying to wire up a ceiling fan. the power coming into the room is 12 wire, heres the problem. inside the light switch theres a 12-3 and 12-2, that are fed from the attic, how should i go about get… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
8,290 satisfied customers
I have two bedroom switches, one for the light in the closet
I have two bedroom switches, one for the light in the closet and the other to a fan which is controlled by a remote. The switch to the fan/light has no effect on the remote that controls the whether i… read more
electrifier
electrifier
Master Electrician
Bachelor's Degree
1,458 satisfied customers
I have a combination switch and outlet that operate a light
I have a combination switch and outlet that operate a light bar in a powder room. The light switch works but the outlet is not connected. The source is coming from the light bar, so all that is coming… read more
electrifier
electrifier
Master Electrician
Bachelor's Degree
1,458 satisfied customers
I am trying to install a new ceiling fan (already mounted)
I am trying to install a new ceiling fan (already mounted) and wires attached to 14/3 romex as follows: black fan to black romex, white fan to white romex and black/white fan to red romex. My issue is… read more
Jason
Jason
Service Technician
Associate Degree
3,958 satisfied customers
Have a question about wiring separate light and exhaust fan
Have a question about wiring separate light and exhaust fan in a bathroom. They are separate fixtures. In the switch box I have a romex wrap of black white and red coming from I think the light and an… read more
electrifier
electrifier
Master Electrician
Bachelor's Degree
1,458 satisfied customers
I have an inside half switch outlet controlled by 2 seperate
I have an inside half switch outlet controlled by 2 seperate switches. I want to make the entire outlet hot and use the power from one of the switches to control a speed control switch for a yet to be… read more
electrifier
electrifier
Master Electrician
Bachelor's Degree
1,458 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x