Important - check this every time you set up

Originally posted by Tars Tarkas Klein tools are top of the line but if you want to save a little money, there is this from Amazon.  Also available at Lowes brick and mortar.  I've been happy with it.  https://www.amazon.com/gp/product/B00ICSW4QK/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 TT

That's within a buck of what I paid for the Klein.

Just added this to the tool bag we carry in the garage. It measures AC & DC volts, AC & DC amps with a hall-effect non-contact loop for both, ohms, diode checker, continuity test, frequency, capacitance, temperature and low impedance mode. It also has a non-contact voltage probe so you can verify that the hot connector on an outlet is the right one.

I have a tester for 110 outlets. If that showed an open ground at pedastal would that also mean that the 30 amp plug in has an open groung too?

Originally posted by Susie Q Dumb question... once I have the tester where do I test and what indication(s) am I looking for?

Test any metal surface that's connected to the frame -- steps, tongue, frame, etc. (I don't know if the door knob would work.)  These little testers glow and or blink and or beep in the presence of voltage.  That's what you're looking for -- any indication of current anywhere it shouldn't be.

TT

I will definitely use this method next time we hook up.  On our August trip, our last stop was at a family members. We got power from a proper outdoor extension cord.  At the end of the trip I was hooking up the trailer and wdh. I got shocking a sensation.  It wasn’t enough to hurt or jolt, but I couldn’t hold on to the bare metal For more than a few seconds.   Nothing was on in the trailer at this time, but we were still connected with the cord.  Our host said he wasn’t Sure if the outlet we used was grounded properly. Are those symptoms of an exterior issue like outlet not grounded? Or is there something within the trailer that would cause this?