Electrical

Electrical Questions? Ask an Electrician Online.

Ask an Expert,
Get an Answer ASAP!

I am replacing my drop-in cooktop and am in need of some…

Customer Question
I am replacing my...

I am replacing my drop-in cooktop and am in need of some guidance with the electrical hook ups. I have 2 wire (2 blacks w/bare ground) service and the cooktop has 3 wire (red/black/white/ground). How do these wires pair up?

Contractor's Assistant: How old is the system in question? And have you consulted an electrician yet?

25yrs old. Service is aluminum.

Contractor's Assistant: Do you plan on doing the work yourself?

Have not consulted an electrician

Contractor's Assistant: Anything else we should know to help you best?

I am doing the work. Been doing remodel for 30 yrs but this situation is new to me. Just need to know which wire connects to which.

Submitted: 4 months ago.Category: Electrical
Show More
Show Less
Ask Your Own Electrical Question
Answered in 1 minute by:
11/29/2017
Electrician: Mike G., Master Electrician replied 4 months ago
Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 8,169
Experience: Proven Professional 49 years Experience
Verified

Hi, I'm Mike and I'll be assisting you. Please stand by while I review your question.

Ask Your Own Electrical Question
Customer reply replied 4 months ago
hello!!
Electrician: Mike G., Master Electrician replied 4 months ago

Existing 3 wire circuits can still be used. Connect the 4 wired as follows.

  1. Connect the black and red wires to the 2 insulated house wires
  2. Connect both the white and green to the bare wire.

Having aluminum and copper wires connected you need to use a split bolt with a divider for the connections. The aluminum wire should be treated with a DeOx compound and the joint taped with friction tape and then with plastic electrical tape.

Ask Your Own Electrical Question
Customer reply replied 4 months ago
ok
does it make a difference which of the 2 black supplies the red and black are connected to?
Electrician: Mike G., Master Electrician replied 4 months ago

No matter one for each.

Ask Your Own Electrical Question
Customer reply replied 4 months ago
is all this connections suppose to fit into 4x4 junction box?
Electrician: Mike G., Master Electrician replied 4 months ago

Should have been a deep 4 11/16 box. You can put an extension box on to increase the capacity.

Ask Your Own Electrical Question
Was this answer helpful?
Ask Mike G. Your Own Question
Mike G.
Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 8,169
8,169 Satisfied Customers
Experience: Proven Professional 49 years Experience

Mike G. 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

3,942 satisfied customers

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

Mike G.

Mike G.

Master Electrician

8,169 satisfied customers

Proven Professional 49 years Experience

Kevin

Kevin

Licensed Electrical Contractor

3,870 satisfied customers

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

1,115 satisfied customers

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

< Previous | Next >

Related Electrical Questions
I live in a mobile home with aluminum wires. We just
I live in a mobile home with aluminum wires. We just switched over to smart meter service. Would this affect the current running through my trailer? why because I use to be able to run a portable heat… read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
I have aluminum wiring & need a new water heater. Can I get
I have aluminum wiring & need a new water heater. Can I get one installs without … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I havea line into junction box and 14-3goingout to switch
I havea line into junction box and 14-3goingout to switch and also wire goingout to light . all grounds are connected. when I connect hot wire to black in the 14-3 ,tester shows about 5 volts in both … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
Have 3 cdr awg 2 and 1 cdr awg 4 aluminum wire for a 100 amp
have 3 cdr awg 2 and 1 cdr awg 4 aluminum wire for a 100 amp sub panel. Is this wiring sufficient. distance is less than 2 feet from the main.… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I am looking for installation instructions for junction box
I am looking for installation instructions for junction box # BH614R … read more
Sam I
Sam I
Electrician
B.S.
573 satisfied customers
My house is older and has aluminum wiring. I'm having some
My house is older and has aluminum wiring. I'm having some difficulty getting a new light fixture to light. It's a problem that I have not experienced here before.… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
Half rou d junction box for a ceiling light fixture. There
Half rou d junction box for a ceiling light fixture. There is a water pipe nearby where i want the light to go … read more
George Smith
George Smith
Vocational, Technical or Trade School
430 satisfied customers
Mounting of junction box in wet location...outside...how
Mounting of junction box in wet location...outside...how high off of the ground does the weatherproof box need to be mounted. Is there a code requirement?… read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
IF YOU SPLISE A WIRE DO YOU INSTALL A JUNCTION BOX. JUST NOW
IF YOU SPLISE A WIRE DO YOU INSTALL A JUNCTION BOX … read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
I would like to convert a wall outlet to a junction box so I
I would like to convert a wall outlet to a junction box so I can add power to the room behind the current wall outlet....I have already removed the wall plate and can see that there are currently 2 wi… read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
When I purchased my home, it had aluminum wiring in it. So
When I purchased my home, it had aluminum wiring in it. So we had the copalum crimping treatment done to the whole house. Now we want to add a few more outlets & lights and I wonder if we need the sam… read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
I need help to Hard wire a nanny cam inside the junction box
I need help to Hard wire a nanny cam inside the junction box of a wall outlet. My problem is that the nanny camera camera only has 2 wires (black and white). On the other hand, the wall outlet has 5, … read more
Sam I
Sam I
Electrician
B.S.
573 satisfied customers
Can you put a junction box In a line going to and electric
can you put a junction box In a line going to and electric stove 40 amp size or does it have to be one continuous run … read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
I have a junction box with Al wiring. One Black One Red and
I have a junction box with Al wiring. One Black One Red and a stranded bare common. It used to have a drop in stove. I wish to change over to a new slide in stove with a 3 prong plug. Can I put a flus… read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
I'm trying to locate a junction box on a 1988 cavco
I'm trying to locate a junction box on a 1988 cavco manufactured home … read more
ProGrade
ProGrade
Electrical Contractor
564 satisfied customers
What would be the reason to have an open junction box in the
what would be the reason to have an open junction box in the crawl space of a house? … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
Adding a receptacle to an existing junction box. The old
Adding a receptacle to an existing junction box. The old receptacle tests good but the new receptacle is showing an open hot/ ground. Getting continuity when I test the hot and ground wires. What's up… read more
Mike G.
Mike G.
Master Electrician
8,169 satisfied customers
Was just informed I might require a Hard Wire Junction box
Was just informed I might require a Hard Wire Junction box with installation of a water heater. Would like to know appx cost for this job and recommendations of electricians in my area … read more
Mike G.
Mike G.
Master Electrician
8,169 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