I had my garage wired with a 100A panel over the summer and bought a CUBE controller to jump headfirst into eBrewing. The panel is not GFCI but the breakers are GFCI. I got around to using the CUBE a few months ago and the 240V outlet worked fine for the element but any time I had something plugged into one of the 120V outlets and turned it on, it would trip the GFCI. OK, I figured something was goofy inside the CUBE. I contacted Auber and they said if the 240 is working but the 120 trips the GFCI, there's a good chance the breaker is wired incorrectly. They said to have the electrician look at it to verify the wiring is correct before worrying about if the CUBE is the issue. Fair enough.
The troubleshooting guide they have says if the 240 is good but the 120 isn't, it is possible the neutral wire is not wired correctly. The coiled white pigtail should go to the neutral bus. The neutral from the wall outlet should be connected to the terminal on the GFCI instead of the neutral bus. If the neutral wire from the wall outlet is connected to the neutral bus, it will trigger the GFCI for 120 devices.
I'm no electrician and do not want to die for this hobby. Is it possible for me to visually diagnose the stuff in bold font above? If I turn off the breaker on the main panel, can I unscrew the faceplate on the garage panel to see if this is hooked up correctly? My electrician is dragging his feet and if I can see it's not done correctly, I'll just hire another guy to come over and rewire it.
The troubleshooting guide they have says if the 240 is good but the 120 isn't, it is possible the neutral wire is not wired correctly. The coiled white pigtail should go to the neutral bus. The neutral from the wall outlet should be connected to the terminal on the GFCI instead of the neutral bus. If the neutral wire from the wall outlet is connected to the neutral bus, it will trigger the GFCI for 120 devices.
I'm no electrician and do not want to die for this hobby. Is it possible for me to visually diagnose the stuff in bold font above? If I turn off the breaker on the main panel, can I unscrew the faceplate on the garage panel to see if this is hooked up correctly? My electrician is dragging his feet and if I can see it's not done correctly, I'll just hire another guy to come over and rewire it.