After driving rv on a couple errands I hooked up shore power as usual to house but this time blew house breaker. Tried another outlet, same thing. Shut main breaker in rv and plugged in again and have 120 right to the main breaker. If I flip it on it blows again at house. I checked all exposed wiring and connections and found no visible problems. I seem to be stuck as to how to continue the troubleshoot from here. Thanking in advance for all available help

Turn off all of the other breakers then turn on the main. If it still trips and there are no loose/shorted wires inside the panel, replace the main breaker. They can go bad,If it doesn’t trip, turn on the branch circuit breakers one at a time to see which one causes the issue.

Is the house (not the RV) CB a GFCI? Is it 20, 30 or 50A?Do you have house loads on the circuit in addition to the RV loads that are causing the CB to trip?

Is this the rig that had the converter or inverter issue?Make and model of rig?Start by inspecting the 120 volt AC distribution panel. Look for damaged wiring.

The main breaker does not trip in rv as explained. The GFI is 20 amp at house and no other connections on it other than my shore power. Had no problems past 4 months tripping it. I tried 3 other outlets on house and all tripped too.I have checked all exposed wiring from main box to panel and converter/charger and see no sign of unconnected, loose or wires touching. At a loss how to continue. Could it be in the converter/charger?

What is the result of testing as wnjj suggested?Do you have a dedicated 20A non GFCI plug on a dedicated 20A CB that you can try? Most household circuits have 20A CB and multiple 15A plugs.

AC power problem | Good Sam Community

25 Replies

CA_Traveler
Explorer III
Sep 02, 2020
What is the result of testing as wnjj suggested?

Do you have a dedicated 20A non GFCI plug on a dedicated 20A CB that you can try? Most household circuits have 20A CB and multiple 15A plugs.
JR51
Explorer
Sep 02, 2020
The main breaker does not trip in rv as explained. The GFI is 20 amp at house and no other connections on it other than my shore power. Had no problems past 4 months tripping it. I tried 3 other outlets on house and all tripped too.
I have checked all exposed wiring from main box to panel and converter/charger and see no sign of unconnected, loose or wires touching.
At a loss how to continue. Could it be in the converter/charger?
enblethen
Nomad
Sep 01, 2020
Is this the rig that had the converter or inverter issue?
Make and model of rig?
Start by inspecting the 120 volt AC distribution panel. Look for damaged wiring.
CA_Traveler
Explorer III
Sep 01, 2020
Is the house (not the RV) CB a GFCI? Is it 20, 30 or 50A?

Do you have house loads on the circuit in addition to the RV loads that are causing the CB to trip?
wnjj
Explorer II
Sep 01, 2020
Turn off all of the other breakers then turn on the main. If it still trips and there are no loose/shorted wires inside the panel, replace the main breaker. They can go bad,

If it doesn’t trip, turn on the branch circuit breakers one at a time to see which one causes the issue.

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AC power problem

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