Kind of a simple question:
In an older home with ungrounded and unpolarized receptacles, can a GFCI outlet be installed and work correctly? Thanks!
Ken Heintzelman
Welcome Ken. 
This may help you:
http://www.mikeholt.com/mojonewsarchive/NEC-HTML/HTML/Article-406-Receptacles~20040628.php
Yes.
Simple question, simple answer. 
Sure, Jeff - but couldn’t you have put that into a link format somehow?
Just kidding, fellas - I like the links and saved them to the electrical archive. Thanks for the info.
Sure, Jeff - but couldn’t you have put that into a link format somehow?
Just kidding fellas, I read the links and saved them to teh electrical archive. Thaks for the info!
Sure, Jeff - but couldn’t you have put that into a link format somehow?
Just kidding guys, I read the links and saved much to the electrical archives. Thanks for the info!
Sometimes I find ungrounded GFCIs and the test button on both the unit and my tester does not trip the unit. Why?
What would be the wiring configuation for it to work on an ungrounded circuit?
Your tester won’t work on one installed on a 2 wire system (because the tester shorts to the ground and there isn’t any) but the test button on the recepticle should. If it doesn’t the GFCI needs replacing.