50 Amp to 20 Amp

[Mike Canter]

GFI breakers do NOT trip because of high current flow. The trip because of an imbalance or a leak to ground. This is why you still have a breaker in the circuit. GFI stands for Ground Fault Interupt

[Libero]

Originally Posted by Mike Canter

GFI breakers do NOT trip because of high current flow. The trip because of an imbalance or a leak to ground. This is why you still have a breaker in the circuit. GFI stands for Ground Fault Interupt

Mike is 100% correct. The GFI breaker is tripped when the current on the neutral is different than the current on the hot lead. It has nothing to do with circuit overload.

If current is leaking to ground there will be less current on the neutral than measured on the hot wire. The imbalance can be very slight to trip that breaker.

Suggest you get a kill-a-watt meter and plug it into your power plug to see current draw as you power systems up. I recorded what each appliance, converter etc draws.

Good luck

[Menard54]

I have a 2002 Horizon, when I plug the shore line into the 50 amp service plug it is only showing up on the board as a 30 amp service and the frig is showing ac lo, nothing else wants to work. Am I missing something?
I am new to the Motorhome family, I have had this coach for about a week now.

[Mike Canter]

How does everything work when on the generator? Is this 50 amp outlet at your home or at a campground? If at a campground I would try a different shore power outlet

[BFlinn181]

Originally Posted by Menard54

I have a 2002 Horizon, when I plug the shore line into the 50 amp service plug it is only showing up on the board as a 30 amp service and the frig is showing ac lo, nothing else wants to work. Am I missing something?
I am new to the Motorhome family, I have had this coach for about a week now.

An RV 50 amp service is 2 'legs' of 120 v, 50 amp service. With a multimeter you should check to see if the pedestal outlet has power to the 3 and 9 o'clock positions with the other test probe in the 6 o'clock position. It should read 120 v. What 'board' is reporting 30 amps? Could be the pedestal is actually a 30 amp service with a 50 amp plug. Check the rating of the circuit breaker in the pedestal. A good reason for having an Electric Monitoring System. (EMS)

[RustyJC]

If the 50 amp recepticle is wired correctly, you should read 240 VAC between the 3 and 9 o'clock positions. If your power management system isn't sensing 240 VAC between L1 and L2, then it's assuming that you're plugged into 30 amp service.

Rusty