Flyct is new to the Super Duty but had our Airstream for 5 years now. I was hopeful that I could charge my batteries or even run the smaller AC unit(13.5) from the Pro Power. My Honda 2200 can run that AC., so I was hoping the Pro Power would run it, too. When we have a stop in hot weather, it is easy to leave the truck running and start the AC in the trailer. Or top up the battery bank if need arraises. I plug it in and just recieve a ground fault. I ran the Pro Power test, and I received the same error message.

I think something else is going on. If I unplug everything, turn on the inverter and run the test, I receive the same error message.

 

Don’t have the answers…but…this concerning.

if this is a mixed fleet problem…meaning some have the problem and some don’t…makes me think assembly line workers flipped wire connections on the out let..if that’s possible.


it sounds to be that the inverter output is LF which would involve a transformer and the behavior described suggest that a balanced transformer is being used….that would explain why double the L1 voltages are showing up.

look at this simple diagram ….it shows the L1 at the ends of the windings with the neutral at the center of the windings …note the potential ground fault behavior if the opposite end of L1 is tied to ground.

it is not normal to tie a leg of a balanced transformer to ground and if a balanced transformer is in use…there are precautions that need to be put in place for some simple appliances which ground to chasis such as incandescent light bulbs….shock harassment potential.

you can determine if a balanced power transformer is in use by testing with power off..using a sensitive ohm meter resistance across L1 and L2 would be the same in both directions and resistance in both directions from L1 to neutral and l2 to neutral would be half of the L1/L2 resistance .

just speculating but it is the only explanation I can think of for the voltage readings being reported.


hopefully more info will come from ford.

 

I have plugged my RV into the 2K outlet. Had to not draw over 1300 watts or it would trip saying overload. It’s connected to a victron inverter/ charger that I can limit input draw.

 

I took my '24 F350 KR to the dealer yesterday because I've been getting the ground fault messages. Whenever I drive through puddles or go to a car wash, the generator malfunctions. I've gotten shocked twice while in the bed of the truck. Here's the issue: the Ford dealer told me they can't fix it since the computer isn't showing any error codes. I've reached out to Ford, but everyone I speak with evidently believes this is just normal behavior and that nothing is wrong. This is a safety concern that Ford seems to want to overlook. Sorry, Ford, I just can't let that happen.,

Does anyone else have the same response from their Ford dealer that 'they can't fix it'?

 

take a photo of the messages, and instructions for them to recreate the issue.

 

The dealer recreated the errors on the screen - the issue was that since it didn't throw a code in the computer, they don't have any way to fix it. And Ford would not provide a solution - we had them on the phone when at the dealer.

 

File a complaint with the feds

 

I too have this issue of plugging my trailer into the f250 2k generator. Trips the gfci every time. My manual says the generator is,
"Grounding Type
Neutral Floating
The neutral of the inverter generator is
isolated from system ground.
Note: If additional grounding measures are
required, consult with a qualified electrician."

So, if my trailer used a bonded ground to neutral, it is gonna trip the gfci every time. I tried a ground/neutral bonding plug in one of the trucks outlets and it tripped the gfci also. Did you get any resolve OP?

 

you should get a third party to test the output of the inverter

sounds like it’s a balanced power setup….house power is 120v - 0, balanced power is 60 - 0 - 60, which generally is great low noise power for modern electronics….BUT …could be problematic with older appliances that ground the case like a toaster or incandescent light bulb…what is expected to be a ground under house power becomes a 60v hot under balanced power. I hope I am wrong.

 

I tested my truck outlets and found the plug in tester showed neutral and hot reversed. When i pressed the test button it tripped the gfci. I tested the outlet with a good multimeter and it leveled out at 50 v on the hot leg and 77 v on the "neutral". I did not test the resistance between the neutral and the ground as i assume it will be an open. weird test results.

 

Thanks, as soon as I get my trailer back from repair I think I will start isolating at the inverter panel to see if we have some bad wiring.

 

Unsure if this will help but I believe the inverter converts to a square wave VS sin wave if I recall correctly.

 

So the problem was that my trailer inverter also has a floating neutral. Any circuit does not like two floating neutrals. I use a Victron Multiplus 3000w inverter. The solution from another forum said to install the ethernet to USB dongle and then use the Victron app to turn off the floating neutral ONLY while using the output from the ProPower. I think I stated my goal was just to provide power from my F250 to charge my trailer batteries when I was in inclement weather and did not have enough trailer solar output to provide much power to the batteries. I have the dongle installed but have not tried shutting off the floating neutral yet. I need the password to the inverter which I am supposed to get this week to try this solution.

 

The default password/PIN for Victron gear is 000000

 

Please let us know if you were successful in turning the floating neutral off and if it worked to power your item.