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How do I clear the voltage in my coax cable?

by HOGS8403 / December 3, 2012 4:01 AM PST

My cable and internet service provider came and informed me that they had to shut off service because I was receiving too much voltage in my coax cable lines because it was not being grounded properly. The voltage that was being shown was around 40 - 60 volts. I have two TV's and a modem for internet. I just recently replaced my outlets to GFCI outlets thinking that might help; however, they came out yesterday and informed me that the voltage was still there. I am thinking of replacing all of my surge protectors and running the cable through the protectors. Will this help or does anyone have any ideas as to what could be causing this problem? Thanks in advance for your help and suggestions.

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Clarification Request
Your electrician needs to check the sockets.
by R. Proffitt Forum moderator / December 3, 2012 6:06 AM PST
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PS. Comcast in New England.
by R. Proffitt Forum moderator / December 3, 2012 8:57 AM PST

In that system for a house built in 1999, the ground was to the iron water pipe. The rest of the house did pass the test with the tester I noted. This issue was not present there.

This is usually something an electrician deals with. I'm an electronics engineer so I felt comfortable checking out our new home for this issue.

All Answers

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I would look at the cable box on the outside of your home.
by Ed Mead Forum moderator / December 3, 2012 8:54 AM PST

It should be grounded to the ground rod that goes in the soil below your electric meter. If your ground wire is bad, you need to replace it. Also how old is your home?

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