if it is an outlet, you can replace all five outlets for $5.
or you can find out if one is bad with a meter by disconnecting each
outlet.
you must unplug all devices from the troublesome circuit and each
outlet with a MULTIMETER for more complete readings leading to better
answers. the neon tester bulb has helped identify a danger in your
home.

original thread with original answers at :
http://groups.google.com/group/alt.h...d674bf 53e1e2

other faq at:
http://www.landfield.com/faqs/electrical-wiring/part1/


JK wrote:
A pig tail tester shows that I have two hot wires in each of the
outlets in one room. House new 23 years ago and no problems until the
other day. A few days ago plugging iron into outlet cause all on
circuit to loose power. Breaker didn't flip. I replaced breaker and
outlet. Iron works fine in other outlet on other circuit. Twelve
hours or so after loosing power, with breaker on lights returned.
Plugged iron in and lost power again without breaker flipping to off.
2nd test of outlet with pig tail tester again showed two hot wires.
Iron works fine elsewhere. Any thoughts appreciated. Room has
outlets, ceiling fan, and a switch to one of the plugs. I didn't test
the switch. Thanks again.