Testing Shows all Outlets have "Bad Ground"

dngaul wrote:
Larry Cad - Yes, I'm using 3-light plug-in tester that shows the 6 possibilities. I am plugged into a campground shore power.

With an appropriate adapter, plug your little tester directly into the 30A outlet at the pole. Also test the regular 15 amp outlet at the pole if there is one.

That should pretty much tell the story.

Jumper cables. Clamp one end to bumper. Lay other end on earth. Pour glass of water on it. Ground warning now off? You have problems in breaker box cable or pedestal.

If ALL the outlets test bad ground then here is the suspect list:
1: You are running on either Generator or INverter power.

Both Generators and inverters NEED NOT have the safety ground. on some you may choose to bond neutral to ground but it is optional.. Others not even an option
The ground is simply N/C (not connected)

2: Bad ground: Shore power outlet (The one the RV is plugged into)
3: Broken connnection, RV Plug..
3-4-5-6
If a detchable c ord, the outlet, the inlet
If an Auto transfer switch, the switch
The ground lead on the power distribution panel

And any wire between plug and panel.

NOTE: Suspectes listed in order of encounter. not in order of which is nmost likely though the park outlet and the RV's main plug are 1 and 2. on both liting methods.

If you have any adapters (IE 50-30 or 30-15) Include those between park and plug as well.

When I found that situation in my previous RV, I traced it down to the box where the shore cord was wire nut connected to the RV wiring. The ground wire in the wire nut was not making contact.

Bobbo wrote:
...box where the shore cord was wire nut connected to the RV wiring. The ground wire in the wire nut was not making contact...

Good tip! That Stranded-to-Hard Wire interface has been a point of failure in RV's