Can not keep power going to house

Found the problem. Electrician checked the breaker and said it was fine, but he discovered water in the plug where extension cord and camper cord meet. Lesson learned is to always protect the plugs from moisture. Thanks for everyone's suggestions.

dstone wrote:
In my house or the motorhome needs a new breaker? Professional is going to look at it today or tomorrow.

The breaker that TRIPS is the one that might be defective.
I think you said that is the one in the house.

In my house or the motorhome needs a new breaker? Professional is going to look at it today or tomorrow.

After reading all the posts here, this is what I recommend.--

Hire an electrician to replace the 30 amp GFCI breaker in the house panel with a standard single pole 30 amp breaker. Several things in RVs can unnecessarily trip GFCI main circuits.

Check that the 30 amp receptacle is wired properly with 120 volts and correct polarity. With the receptacle mounted with the ground terminal at the 12 o'clock position, the flat blade terminal at the 7 o'clock position should be the "hot" wire and the flat terminal at the 5 o'clock position should be the "neutral" wire.

Then, turn all breakers off in the RV and plug in the shoreline cord and turn on power to it in the main house panel. Check for proper polarity in the RV panel to ensure the shoreline cord is wired properly. When all this is done, turn all RV panel breakers on and enjoy the electricity!

ol Bombero-JC wrote:
"I was just about to do the same".

Offer the advice (not to) -or- (Yikes!) plug into the dryer outlet?..:h

I was about to post not to do that. Didn't have to because someone else already did.

dstone wrote:
Could that have been an incorrect plug?

The breaker in our house does have the test button. Will check the outlet tomorrow.

YOu should trust that your electrician friend would NOT install an incorrect plug.

Your breaker IS a GFI type and as was mentioned before, many RVs don't get along good with GFI circuits.

You REALLY need help from a professional here. If not your neighbor, then hire another licensed electrician.

I still recommend starting with a new breaker. Relatively cheap and easy. (But given your level of expertise, you should NOT attempt to do that yourself.)

dstone wrote:
The plug I bought says its 125 volts. Did I purchase the wrong one?

It's fine. 125 is the max rating. Your 30A RV is 120 +/-

The plug I bought says its 125 volts. Did I purchase the wrong one?

This bears repeating because proceeding in a logical step by step troubleshooting process is the only way to go.

Old-Biscuit wrote:
Turn RV Main 30A breaker OFF
Turn House 30A breaker OFF
Plug RV 30A power cord int house 30A receptacle
Turn House 30A breaker ON

Does it turn/stay ON?
Yes..
Turn ALL breakers in RV OFF
Turn Main 30A breaker ON

Does house 30A breaker stay ON?
then turn individual rv breakers on one at time until house 30A breaker trips

If House 30A breaker trips with RV main 30A breaker OFF then need to check wiring on power cord new plug and connections in rv power panel

Process of elimination.
Starting with house 30A breaker---then rv power cord-----then rv power panel----then individual rv circuits

wa8yxm wrote:
You said several things and failed to say one thing.
You said you had an electrician install something
You said it trips the breaker in the house
You did not say GFCI..

By code, an outdoor outlet (up to 20 amps) must be GFCI protected and in some places a 30 amp as well.. So far 50 amps' need not be GFCI.

IS THE BREAKER IN THE HOUSE a GFCI.. if so it will have a button marked TEST on it. pressing this button will trip it.

Many RV's do not play nice with GFCI outlets. there are many reasons for this, sometimes it is the converter, Some will trip a GFCI if the batteries are low, Others when they are full up, others any time, others never.

Other times the problem is somewhere else.

This is what I said in my original post. "Our neighbor, who is an electrician, put a new plug on the cable because it was fraying some." This plug I purchased at Lowes. Could that have been an incorrect plug? The breaker in our house does have the test button. Will check the outlet tomorrow.