We are trying to install a garage door opener and our home is pre-wired with cat5e cable and not sure what colors to hook up

Try these resources:
Wiring garage door opener model 139 53990D ShopYourWay
fix garage door opener wiring Sears PartsDirect

I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

Get a continuity tester at Home depot. First, make sure all the conductor wires are separated from each other. Strip back a 1/2" insulation on each conductor (both ends).
Start with the wires at the wall control wire location. Twist the stripped
bare wires together. Now go on the ladder where the 3 cables are
and "ring" out that conductor with the continuity tester. Once that cable is found, tag the wire identifying it as the controller.

Did you install the door sensors? If you did, make sure the light on each one is lit and not flickering. Double check your wiring. Make sure you connected the wires from the door sensors correctly. They are color coded.

The opener actually needs 6 wires. They gave you 4. It depends on where the wires end as to what you can do. A good imagination will help. I personally would install it with the wires furnished with the opener.

I have tried this, and my suggestion is to go back and get the proper wall jack. How much are headaches worth to you? If they are worth more than the wall plate, just **** it up and get the correct one.

Looking at the image in the link below, your computer only uses the orange pair and the green pair. You could break out the blue pair and brown pair and actually run 2 separate phone lines through this cat5e cable also. For reference this image is shown with the end of the plug facing you. The only issue I see with this is to make sure you know which 4 wires you are using in the 12 wire cable and connect the orange pair and green pair to the same wires on both ends. (Do the same with the blue pair and brown pair for your phone line.) If you need any further assistance please feel free to contact me.


http://www.beginnercode.com/wp-content/imgupload/cat5e_T568B_Wiring_Diagram.gif

Basically any bell wire will work, available at any home centers everywhere. if the existing wire is long enough, just wire nut it together (white to white, color to color)

Do you have the manual? You have to program the wireless remote. Not sure of the exact procedure on this model, but the manual will explain it. If no manual let me know, Countrycurt0

Can you hook up sensors to an older craftsman garage door that never had them?

You'll need to go to : http://www.managemyhome.com/mmh/common/Home.action?sid=MMHMxSearsx00020

Go to the middle of the page 'Search Product Manuals'.
Type in your model #, xxx-xxxxxx of the garage door open.
It should give you the correct wiring diagram your looking for.