I have a outlet (standard 3 prong household, not gfci) that makes a low
tone buzz when in use. Currently the stereo and TV are plugged in to
it. With the stereo on the buzz (more like a humm) is very faint, but
with the TV on it is very noticable. I replaced the outlet but the
noise is still there. What else can I do to eliminate the buzz?
That is unusual. I suggest you unscrew the outlet from the wall and pull it
out a bit and than listen for the buzz. You need to determine if it really
is from the receptacle or something nearby. I like to use a cardboard
paper towel tube up to my ear to listen more directionally (kind of like a
Use an outlet tester (the three prong thing with the lights that tell you if
there is a wiring fault) to confirm continuity and proper hot neutral
connection (though that wouldn't necessarily cause a buzz).
Do other Loads in this outlet cause the Buzz. A defective power supply in
the TV might be feeding electrical noise back into the branch causing (and I
am not sure how) something to vibrate.
Are you sure you are not just hearing noise from a different source (inside
the TV)reflected off the wall near the receptacle?. Use some objects to
block extranious noise paths.
How old is your home. IT could be aluminum wire going bad or maybe just
an bad connection. Aluminum wire is a special problem and if you have that
you may have more than one problem. If it is newer home it will be copper
wire and it still could be the connection to the outlet, especially if it is
a back stab design where the wires are just stuck in the back and now
screwed down on the side.
Replacing the outlet should have solved the issue. My first look
would be checking for any loose connections. With the circuit OFF,
tug on wires that are connected with a wire nut to make sure these
connections are tight. Other things to consider: There may be
something wrong with the circuit breaker (in the electrical box). You
may be hearing a noise from another (unseen) source.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.