Jerry Simon Posted March 17, 2008 Report Share Posted March 17, 2008 What does having all three lights on a 3-light tester light-up mean? My Sure-Test said the receptacle was fine & dandy. (I was too lazy to get my Wiggy out of the truck, but will when I return to check the plumbing when the winterized house is de-winterized...lordy, how many of those have we atypically seen this year?!) Thanks for any light-insight. Link to comment Share on other sites More sharing options...
Bob White Posted March 17, 2008 Report Share Posted March 17, 2008 Could mean voltage approaching 240V --- I used to have a link to a schematic of a typical three lighter, but I can't find it now---- Anybody got one? edited to coooorekt speeling Link to comment Share on other sites More sharing options...
mr_tom Posted March 17, 2008 Report Share Posted March 17, 2008 When I was testing outlets in detached garage, I was fixing, I ran into a similar problem. I had the two normal lights, plus a faint glow on the abnormal light, so I had all three. I checked connections, and after I was done, I had the two normal lights only. I remember that when I did find a poor 'grounded conductor ("neutral") connection under a wire nut. Regardless, it was improperly connected, and needed correction. Just a guess, tom Link to comment Share on other sites More sharing options...
hausdok Posted March 17, 2008 Report Share Posted March 17, 2008 Hi, Was there anything else plugged into the same circuit? I think I had that a time or two when there was something else plugged into the same circuit drawing power. OT - OF!!! M. Link to comment Share on other sites More sharing options...
Jim Katen Posted March 17, 2008 Report Share Posted March 17, 2008 Originally posted by Jerry Simon What does having all three lights on a 3-light tester light-up mean? My Sure-Test said the receptacle was fine & dandy. (I was too lazy to get my Wiggy out of the truck, but will when I return to check the plumbing when the winterized house is de-winterized...lordy, how many of those have we atypically seen this year?!) Thanks for any light-insight. If the Suretest says its fine, but the three-light shows all three lights on, there was probably a high load upstream of the receptacle. Schematic attached for Bob. - Jim Katen, Oregon Image Insert: 34.21 KB Link to comment Share on other sites More sharing options...
Brandon Chew Posted March 17, 2008 Report Share Posted March 17, 2008 All three lights lit should mean that you have current flowing between: hot and neutral neutral and ground hot and ground all at the same time. Here is some good info on three-light testers which may shed some light [] on the subject: Interpreting 3-Prong Outlet Testers Download Attachment: Three_Light_Electric_Tester.pdf 250.24 KB For Jim & Bob, see figure 3 in the pdf. Link to comment Share on other sites More sharing options...
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