How To Fix Your Phone Jack Wiring
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I changed some of the telephone jacks, now some phones do not work right. How to Check your Phone Jack Wiring and Get a Dial Tone.
© By: Dave Rongey
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Phone Jack Wiring and Repairs
[ad#block]Electrical Question: I changed some of the telephone jacks, now some phones do not work right.
- The two phones downstairs work fine, but when I connect the upstairs phone, sometimes it works and other times it will disable all the other phones.
- Sometimes the phone rings once then cuts off. Why is it when I connect the upstairs phone there is a problem?
This electrical question came from: Lance, a Homeowner from Brooklyn, New York.
Dave’s Reply:
Thanks for your telephone wiring question Lance.
How to Check Your Phone Jack Wiring and Get a Dial Tone

- I would double check your wiring connections on the phone that is causing all the problems.
- If you notice that the phone line goes dead when you use a different phone then the phone may have a problem, or the telephone wiring may be damaged.
- Go to the telephone wiring diagram and make sure the connections are correct.
Telephone Wiring Diagram

Phone Jack Wiring
- This telephone wiring diagram with photos and instructions will show you the direct steps to correctly wiring a telephone jack.
The following may also be helpful for you:
A Complete Guide to Home Electrical Wiring
Be sure to get your copy of my BIG Book:
Perfect for Homeowners, Students and Electricians
Includes:
Home Electrical Wiring - Room by Room
120 Volt Circuits
240 Volt Circuits
Multi-Wired Circuits
Wiring Methods for Installing Home Electrical Circuit Wiring
Electrical Codes for Home Electrical Wiring
....and much more.
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Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency
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UL Listed
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My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
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