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I have 120vac shore power but no 120vac at my breakers. 2017…

Customer Question
I have 120vac shore...

I have 120vac shore power but no 120vac at my breakers

Mechanic's Assistant: What is the make/model/year of your RV?

2017 Rockwood Roo 233s

Mechanic's Assistant: Are you fixing your RV yourself? What have you tried so far?

I found a broken prong on the shore power adapter and replaced it

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

That’s it Thank you

Submitted: 3 years ago.Category: RV
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Answered in 1 hour by:
7/14/2019
RV Mechanic: Robert, RV Mechanic replied 3 years ago
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 24,308
Experience: 23 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
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Hi, I'm Robert. Welcome to JustAnswer. I'm reviewing your question now and will post back with your reply momentarily.

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RV Mechanic: Robert, RV Mechanic replied 3 years ago

The incoming AC voltage will go right to the breaker panel if you do not have a generator built into the RV.

Anytime you troubleshoot an electrical problem like this you want to plug the RV in direct with no adapters or extension cords, adapters can cause problems and if you are using a long run of extension cord you can have line loss where the AC voltage will drop off to the point where nothing will work.

The next step would be to ohm out the wires in the cable or check for continuity through each one, you could have a bad cord if each wire does not have continuity.

Hope this points you in the right direction.

Robert

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Customer reply replied 3 years ago
I only have 111vac at the breakers. Microwave has power but nothing else does. 111vac at every breaker. I have 111vac in my house probably because of all the ac units running here in Chicago. I should at least get the led lights to come on right?
RV Mechanic: Robert, RV Mechanic replied 3 years ago

The system is split AC power which is the outlets, microwave TV. The fridge and AC unit both use DC power and AC power. They will not turn on if do not have DC power. The lights, furnace, water heater are also DC power. When you are plugged in the power converter takes the incoming AC voltage and makes the DC power and charges the battery.

111 AC volts should be good enough to power the outlets. IF the microwave and the outlets are not go around the RV and make sure you do not have a tripped GFI, these will be outlets with a test and reset on them.

When you plug into a house outlet you are asking for trouble, you can have line loss as you are trying to pull to many amps through a small cord. IF you are plugged into a standard house outlet I would have a 30 amp service installed, I can send you info on that if you like.

Finally you might want to get a polarity checker, this device plugs into the outlets and will tell you if a wiring fault is present. Places like Home Depot have them for a few dollars.

Robert

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Robert
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 24,308
24,308 Satisfied Customers
Experience: 23 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.

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