Shocked at the door handle
2016 travel trailer, 30A service. Plugged into a 30A outlet at the customer's house
Customer says: My wife got a tingle off the door handle. It only happens when it's plugged in.
Tests you can run
- Touch the skin with the back of your hand to see if it's still tingly
- Non-contact tester on the door frame
- AC volts from the trailer skin to a ground rod pushed into the dirt
- Unplug the shore cord and measure again
- Plug-in tester and a meter at the house outlet
- Shore cord ground pin to the trailer frame, unplugged
- Plugged in, turn coach breakers off one at a time while watching skin voltage
- Water heater element to tank, power off, wires off, high ohms range
Repair options
Keep going on 120V and shore power
Learn it
- Shore power: 30A vs 50A
- Breakers, GFCIs and the EMS
- The lost neutral (50A danger)
- Transfer switches and generator power