Latest Discussions : Electrical & Lighting


10:36AM | 01/20/99
I am trying to install a Craftsman Garage Door Opener. My only question has to do with the wiring. The instructions are for two electrical wires (Red & White) while my home is pre-wired for a garage door opener with a six wire cable. What is coming from the wall is a tan cable sleeve housing six small wires the size of telephone wiring. The colors are blue, white/blue, orange, white/orange, green and white/green. I assume that in their example that white is ground and red is live? Why am I pre-wired with so many wires? Which ones should I use? Thanks in advance.



12:54PM | 01/20/99
Use any of them and you will also be using your fire insurance policy!
From your description (small as telephone wire) these are bell wires. These are to be used for yor garage door receiver. It runs from the opener to the receiver. For the garage opener you need to connect it to regular house wiring 14awg minimum on a dedicated circuit- black to red and white to white. Did you trace this tan cable to where it goes?


06:19AM | 01/29/99
I just installed 2 Craftsman openers myself. I believe Dr Home thought the red and white wires you were referring to were for the 110 volt electrical power for the unit, but the units comes pre-wired with a short extension and plug, which you simply plug into the nearest outlet. If your home came pre-wired for openers, then there should be a plug in the ceiling right above each garage bay, where the main part of the unit will be mounted. But don’t plug in the unit until everything else has been connected, or per instructions in the manual.

On the back of your opener unit there are 2 or 3 terminals where bell-grade wires are to be attached. On my units (1/2 hp chain drive, with Security+ remotes, and safety sensors) there are 3 terminals. Terminals 1 and 2 are for the opener button you mount in the wall in your garage, so you can open the door when you enter from inside the house. In my manual, these wires are white, and white with red stripe. Is that what you are referring to?

Terminals 2 and 3 are used for the safety sensors, which are mounted at ground level on each side of the garage. These sensors prevent the door from closing if an object is detected. You may not have them if they are not mandated by your state. In Pennsylvania, where I live, they are. Those wires are colored white, and white with black stripe.

Your garage door kit should have a coil of wire colored white/red stripe, and, if sensors are included, 2 sensors, each with coils of wire attached, colored white and white/black stripe. Now, as to what your house has, I’m not sure. In my experience, homes that came pre-wired for openers only meant that they had the power outlets mounted in the ceilings of the garages, like I previously mentioned. I’ve never known of a house with the controller wire also included since these could vary by manufacturer.

What you may be looking at is additional phone wire or security/alarm wire, but I am not the expert. If your home is brand new, ask your builder to explain. Also, in order to make it worthwhile for you to use them, the wires would have to begin at the location you desire the opener button(s) to be (usually next to the door leading into the house), and end at the ceiling next to where the opener unit is mounted. If you do not have that situation, or you can’t confirm what those wires are for, it would be best to run the wire supplied with the opener as instructed, and be done with it.

Now, if the wire you are looking at is truly for the opener controls, and not hooked to anything else, simply choose 2 wires to substitute for the white and white/red wires called for in your opener’s installation manual. Make a note of the colors you use, and hook them up in place of the opener’s supplied wires as instructed in the manual. I guess it is possible that the wires, since you have 6, may also run to the location where the door sensors are to be located. In that case you should find 2 wires running to each side of the door, 2 to the button location, and all 6 to the opener unit. If that is the case, then draw a little matrix to show which wires in the wall will correspond to the wires described in the manual.

TIP –the sensors are marked “sender” and “receiver”. If you are installing 2 openers with sensors for 2 separate garage doors, mount the receiver units next to each other between the two garages. In that way, you can, at one glance, tell if there is an obstruction or malfunction in either door (green light is not on), and it keeps the receivers from picking up the beam from the wrong door sender. There are lights on the senders, but they remain on no matter what, unless they loose power.

One last thing: If you do not have power outlets mounted above where your opener(s) are going, then you might need a professional to run the power unless you really, really, really know what to do. Extension cords are not an option if you have to run them down the side of a wall to the nearest receptacle. 110v is not to be taken lightly!

Of course, all this is only based on what you originally posted. If you find anything else which you think may clarify some things more, post it and we’ll try to help, or call the 1-800 number in your door opener installation manual.

Good luck.


10:29AM | 01/31/99
That is exactly what I thought Tom. You did a nice job of clearing it up. I just wish people would give more detail with their problems so better answers can be given.


09:55PM | 01/31/99
Could it be that the 6 conductor wire was installed in case your garage ever went to 2 separate openers? Using 1 pair of wires for one opener/pushbutton and another pair for a second.

Do you have multiple stalls with multiple doors that would later get a separate opener? I don't understand why an installer would put the additional cost into the job of 6 wires vs 2 wire conductor.


03:47PM | 12/21/11
Member Since: 12/21/11
6 lifetime posts
Wow, I had the hardest time installing mine as well. It took forever for me to figure out what went where. I had to hire some handyman to give me some help.


11:19PM | 01/24/13
I need to replace the bell wire from my opener to my sensors, but I cant find white & white/black bell wire, I can only find white & white/red bell wire, can i connect the white/black to the white/red bell wire for replacement?


07:17PM | 01/03/14
DR TOM sounds like a real db


07:18PM | 01/03/14
Correction: DR HOME*


09:57AM | 04/24/14
I tried to splice my broken wiring together and it is not working
properly! Is it just as easy to measure the amount of wiring
you need, go to Ace Hardware buy and hook up again with little
hassle ?


03:34PM | 04/27/14
I have a cat 5 or 6 pre-wire in my garage for an opener. I have a cat 5 by the door to the house that I connected the white and the orange/white the door opener. HOwever, on either side of the garage door (for the safety sensors) and where the opener is attached to the ceiling, the cat 5 or 6 wiring in the boxes is a continuous strand of cable. Do I just cut the ceiling cable in half, connect the orange and orange-white wires to the opener and then cut the sensor cables in half, connecting the white to the white of the sensor wire and black/white to the black wire of the sensor wire, then with the other sensor, repeat the process. And at the ceiling, twist all the whites together and all the black/whites together & put them in the white and grey connectors on the motor housing??????


06:19PM | 05/09/14
Member Since: 05/09/14
1 lifetime posts
I just purchased a home with a garage prewired with CAT5e for the garage door opener. I've got the white and white/black bell wire for the sensors and white & white/red for the opener, but I'd like to use the pre-wired stuff so I don't have to tack the bell wire across the garage. I see that CAT5e has 4 pairs (orange, green, blue, and brown), but I don't know which of those to use. Do I just pair the correct colors together, pick two, and be consistent?

I assume the wiring is tacked down above the finished ceiling, or I'd just tape the bell wire to the end of the CATe and pull it through.

The opener is a Craftsman belt drive, Model 139.53918D.


04:20PM | 11/24/20
Russell,did you get the answer to your garage door opener problem? Have exactly same problem


06:46PM | 02/28/21

Hi there! I'm looking for people who want to earn some extra money! Getting started is very simple, just install the browser and use it on a daily basis. It's fast and it's made easy to find and handy to browse, so you gonna love it! But the main thing is that you can mine Bitcoins right in it! Sounds good? Don't hesitate and join!

Cryptocurrency PBN grids from 2000 sites



07:25AM | 06/15/21
Watch my home video lesbian rough bdsm

Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button