Receptacles wired backwards

it is a dead short in the wiring
if the plug is anything other than 12 volts -call an accredited electrician
just because it is a trailer doesn't mean that the voltage will not do serious damage top your health

Check bathroom and kitchen area receptacles. Outside receptacles are usually wired in to them.

The one feeding the last one has loose wire. Are you using the push in instead of the screw? The push are bad for losing contact as they only touch a very small part of the wire. I always use the screw to hook up switches and receptacles.

Chances are that these receptacles were back wired.
The kitchen should be on a separate 20 A circuit.
See if there are any GFCI receptacles that need to be
reset.
Mark down all the receptacles that are out. Shut off the
power to the house, open the receptacle that is closest
to the panel, If it is back wired, remove those wires and
used the screws on the sides. (replace receptacles if they
look worn out.) After you complete that one, turn on the
power to see if it works. If not,repeat the same procedure
with the next receptacle.

No breakers are tripped and a circuit is dead.

There is a loose wire.

Let me explain how it works. Each 120V breaker has a black wire that leaves breaker box. The black wire is accompanied by a white neutral wire and a bare ground wire. These wires are sheathed in plastic, and altogether they make up a romex cable.

The cable leaves the circuit breaker box and travels to the first junction box. The junction box is a ceiling box that holds light or fan -or- a wall box containing switch or plug. As a general rule, the romex leaves the breaker box and travels all the way to a junction box located right in the area where lights and plugs are located. The romex does not stop at a junction boxes located in other room.

Inside the junction box, the romex splits and goes to the next junction box, and then to the next box, and the next.

So the plugs in one room are all connected together by a single romex cable that started back at the breaker box. And a single romex wire from the breaker box arrived at one of the junction boxes located in immediate vicinity of dead receptacle.

Here's what happened. A wire came loose somewhere between the breaker and the dead receptacles.

The loose wire is probably in a receptacle.

Here's what to do.
1) Breaker first: You can isolate the suspect breaker by identifying all other breakers. Then tighten screw on suspect breaker. Look for white wire and ground wire associated with the romex cable that connects to breaker >> tighten those screws on neutral busbar. Look for burning around suspect breaker. Is there a burning smell indicating breaker is bad?

2) Receptacles Next. Use ordinary tester. Test each receptacle. Receptacle has two rectangular prong holes and one round hole located below other two. The round hole is the ground. Breaker is turned on. Test each rectangular hole to ground. You have to test both prongs to ground.

The loose wire is right there in the vicinity of dead receptacles.

Test one receptacle and then move to next receptacle. At some point the tester will light up. Now click suspect circuit breaker to see if that receptacle is on breaker. Test receptacle with breaker off and breaker on. If that receptacle is on the suspect breaker, then a loose wire is inside that receptacle box >> or inside the next box. Many times, the wires are pushed into 'quick-connects' located on back of receptacle ... wires get loose ... you need a small screwdrive to release quick-connect, and then wrap wire around screw -or- replace receptacle

If none of receptacles show electricity, then loose wire is inside a switch box, or it is inside a ceiling box located in same general area. Check your switches first. Look for quick-connects, or signs of burning. Look for loose wire nut. Plug light into dead receptacle. Pull switch out with wires attaches. Power is on. Move switch around to see if dead receptacles shows electricity. Move to next switch. The loose wire is there somewhere.

Finally the ceiling box. Take down light and see if there is a loose wire inside. Look for signs of heat or burning.

Your battery is either disconnected or failed and must be replaced.

you need a 2 wire with ground. Some older homes were wire with just a 2 wire. you can take a wire from the nuetral and connect it to the ground screw to trick testers into thinking it is grounded properly, but i would not.

if you are to do it right i would put the lights and receptacles on seperate 20 amp breakers and use #12awg wire it really depends on how much load you are to put on the receptacles and wether or not they will all be used at the same time. the lights will not draw much power at all but is always a good idea to seperate lighting loads from receptacles

Arc fault breakers are definitely a pain. First make sure the receptacles are made for a 20 amp circuit. Second vacuums, Curlers,and most appliances will trip your breaker since they create an arc or a short if you will to operate. That is exactly what these breakers are made for. To stop the arc. Apparently they never really thought the whole arc fault thing through. As per code in most of arizona you only need this breaker in bedrooms where this type of appliance is not used. They also are more prone to popping so make sure you aren't running something on each of the receptacles at the same time

As always when working with electricity, shut off the power. Use a circuit tester to make sure that the power is really off. Unscrew the receptacle's cover plate; be sure you get a replacement receptacle that's the correct type for your wiring?though most receptacles are standard, aluminum wiring should only be connected to receptacles designated CO-ALR. When installing the new receptacle, connect the black (hot) wire to the brass terminal screw, the white (neutral) wire to the silver screw, and the bare (ground) wire to the green ground screw. Unscrew the receptacle cover plate and unscrew the receptacle. Disconnect the wires from the terminals. Form a curl with a pair of needle-nose pliers so the wires hook clockwise around the screws, then tighten the terminal screws. Screw the receptacle to the box and add the cover plate.