Electrical Issues

Many RV's pop GFCI's Prime suspects are water heater. Fridge and converter.

TURN OFF all breakrs and plug a drop lamp into the outlet along with the RV via adapters. Put the light where you can see it from the breaker panel in the RV.
now starting with the main breaker turn on one at a time wait a few seconds then the next and the next till the drop lamp goes dark (Tripped GFCI. turn that one back off. reset GFCI and continue till all breakers that do not trip GFCI are on.

Now figure out what's on that breaker.

Old-Biscuit wrote:
IF it is only having Electrical issues when on a 20A outlet....suspect that 20A is GFCI protected and one of the heater elements

Turn Off ALL Individual Circuit Breakers in the RV AC Power Panel
Then plug in/reset that 20A Circuit Breaker
If it Trips....turn off Both 50A CBs in RV AC Panel and try again
If it trips...problem is Adapter(s), RV power Cord,

If it Doesn't trip with RV 50A CBs closed...close each Individual CBs One at a time until the 20A CB trips....then ID that circuit and check it for loose wiring/bad connections etc

1st post PG 1
Follow it and find the circuit that is causing those GFCIs to trip

Only takes 5ma of current leakage from Hot to Ground to trip GFCI

time2roll wrote:
What is the battery voltage right on the terminals?

Tplat wrote:
Tplat,

time2roll is right, you should use a multimeter to get this information. Here's an example of how it looks: https://batterygroupexpert.com/wp-content/uploads/multimeter-SNT-818.jpg

Set the unit to the volts parameter (D.C.), and connect the clips to the battery terminals, matching positive to positive and negative to negative

Old-Biscuit wrote:

Old-Biscuit wrote:
IF it is only having Electrical issues when on a 20A outlet....suspect that 20A is GFCI protected and one of the heater elements

Turn Off ALL Individual Circuit Breakers in the RV AC Power Panel
Then plug in/reset that 20A Circuit Breaker
If it Trips....turn off Both 50A CBs in RV AC Panel and try again
If it trips...problem is Adapter(s), RV power Cord,

If it Doesn't trip with RV 50A CBs closed...close each Individual CBs One at a time until the 20A CB trips....then ID that circuit and check it for loose wiring/bad connections etc

1st post PG 1
Follow it and find the circuit that is causing those GFCIs to trip

Only takes 5ma of current leakage from Hot to Ground to trip GFCI

It also only takes 5mA of current leakage from neutral to ground. Turning circuit breakers off will not remove that fault from the circuit so your method may not locate the issue. Unplugging the fridge or converter or disconnecting the water heater element will if they are causing the problem.

time2roll wrote:

Tplat wrote:
OK found a water leak along the wires for what I`m assuming is the hot water tank, we never used it and also never turned the breaker on for it. Will try the the breakers for the trailer tomorrow , not supposed to rain. Would cutting and capping off the wires or pulling the breaker work? We have access to a bathroom and such so hot water isn`t an issue.

You should be able to remove hot, neutral, ground in the electric panel and put a wire nut on each until you sort this out.

That`s what I was thinking for now in case it rains again. Determined it`s omly has a problem when raining. Right now it`s running off of the 20amp plug in in the well house just fine. Shitty weekend here for fixing things. First my car broke down and then this along with rain off and on for the last 4 days or so and now just learned that the reason car broke down is the head gasket blew.

If it only happens when it is raining, it is probably getting water into the outside outlet which either shorts GROUND to NEUTRAL or GROUND to HOT.

Water in the outside outlet or into one of the extension cord / adapter connections.
Put something over the connections to protect them.