Grounding probe/electrical help...

TomDe · 01/12/2007, 11:18 PM

So I just upgraded from 150's to 250's MH. The 250's will not work with my GFCI for some reason...

So, I want to hook up my grounding probe but the outlet is one of those square ones that does not have a center screw. Are the two screws that hold it in the same? Can I ground it there?

It is a plug in GFCI. Anybody else have MH not work right on a GFCI?

Thanks

supertech3 · 01/12/2007, 11:58 PM

Have the lights been tested before?I can not see what your outlets look like but some of the electrical boxes are plastic so attaching it to a screw may not work. Most light fixtures chassis are grounded, so you may want to hook the wire to the fixture.

TomDe · 01/13/2007, 12:45 AM

My fixture worked on a regular outlet.

My outlet is square shaped like a GFCI but regular and I used to ground my probe to the middle screw. This one has no middle screw, just two on top and bottom holding it in.

01/12/2007, 11:18 PM	#1
TomDe Keep it simple Join Date: Aug 2006 Location: Boston Posts: 308	Grounding probe/electrical help... So I just upgraded from 150's to 250's MH. The 250's will not work with my GFCI for some reason... So, I want to hook up my grounding probe but the outlet is one of those square ones that does not have a center screw. Are the two screws that hold it in the same? Can I ground it there? It is a plug in GFCI. Anybody else have MH not work right on a GFCI? Thanks

01/12/2007, 11:58 PM	#2
supertech3 Registered Member Join Date: Nov 2004 Location: El Paso Posts: 1,206	Have the lights been tested before?I can not see what your outlets look like but some of the electrical boxes are plastic so attaching it to a screw may not work. Most light fixtures chassis are grounded, so you may want to hook the wire to the fixture.

01/13/2007, 12:45 AM	#3
TomDe Keep it simple Join Date: Aug 2006 Location: Boston Posts: 308	My fixture worked on a regular outlet. My outlet is square shaped like a GFCI but regular and I used to ground my probe to the middle screw. This one has no middle screw, just two on top and bottom holding it in.