50 ~ volts in door/doorframe, intermittently
Greetings friends,
I have a 2014 Coachmen Leprechaun C21QB with about 30K miles on it, and last week It began shocking folks at random in the door frame/door steps region. It's happened at 3 separate locations, so I know it's not a faulty ground at the power source. I wasn't there the first 3 times it happened, but I was out in it this past Friday turning things off and on with a polarity tester plugged into one of my GFI outlets, and a volt meter hooked up to the door frame and ground, and after about an hour of turning things off and on, breakers, lights, wiggling wires, inspecting connections, etc, all of the sudden my polarity tester was indicating an "open ground", so I looked at my multimeter that I had connected to my door frame and ground, and it was reading 50 volts. I began flipping breakers one by one to try to ID if it were isolated to a specific breaker/appliance, each time I'd flip a breaker from an appliance like the microwave, the volts would go from 50 to 40ish, then back up to 50 when I turned the breaker back on. I plugged the polarity tester into all of my outlets and they were all indicating "open ground". I then unplugged the whole RV from shore power and plugged it back in, and everything went back to normal, no more voltage in the door frame and no more "open ground" indicator on the polarity tester. I've been trying to repeat the process for the past 3 days and it hasn't happened again, but I know for a fact that somethings not right because it should never have 50v running through the doorframe. I've had 2 RV tech's trouble shoot it, and one licensed electrician, and it's still a mystery what was causing the issue. Keeping in mind, the RV wasn't having the voltage issue when the techs were troubleshooting, but they looked through everything that they believed may had been causing the issue and couldn't come up with anything. Anyone have any suggestions?
I have a 2014 Coachmen Leprechaun C21QB with about 30K miles on it, and last week It began shocking folks at random in the door frame/door steps region. It's happened at 3 separate locations, so I know it's not a faulty ground at the power source. I wasn't there the first 3 times it happened, but I was out in it this past Friday turning things off and on with a polarity tester plugged into one of my GFI outlets, and a volt meter hooked up to the door frame and ground, and after about an hour of turning things off and on, breakers, lights, wiggling wires, inspecting connections, etc, all of the sudden my polarity tester was indicating an "open ground", so I looked at my multimeter that I had connected to my door frame and ground, and it was reading 50 volts. I began flipping breakers one by one to try to ID if it were isolated to a specific breaker/appliance, each time I'd flip a breaker from an appliance like the microwave, the volts would go from 50 to 40ish, then back up to 50 when I turned the breaker back on. I plugged the polarity tester into all of my outlets and they were all indicating "open ground". I then unplugged the whole RV from shore power and plugged it back in, and everything went back to normal, no more voltage in the door frame and no more "open ground" indicator on the polarity tester. I've been trying to repeat the process for the past 3 days and it hasn't happened again, but I know for a fact that somethings not right because it should never have 50v running through the doorframe. I've had 2 RV tech's trouble shoot it, and one licensed electrician, and it's still a mystery what was causing the issue. Keeping in mind, the RV wasn't having the voltage issue when the techs were troubleshooting, but they looked through everything that they believed may had been causing the issue and couldn't come up with anything. Anyone have any suggestions?
