no power in travel trailer

It sounds like maybe you tripped a breaker(s) because you were overloaded? I would turn each breaker to off and back on. Sometimes you can't tell a breaker has tripped by looking at it. But resetting the breakers should restore everything to normal and it's not.

Had a similar problem with my boat. some of the AC worked some didn't. It was the power companies transformer.

thanks!

You have two separate electric systems......

One system is 120V AC.....AC power via cord plugged into a power pedestal that goes to your Main AC Panel with circuit breakers. Panle has a main breaker and the individual breakers for: Microwave, A/C Unit (compressor/fan), Fridge electric heater, Water heater electric element, TVs, outlets.....and AC power to converter/charger (it converts AC to DC to feed 12V DC System and charge battery)

Other system is the 12V DC System.....DC power from battery (when NOT hooked up to AC Power Source) OR DC Power from converter (when hooked up to AC Power Source).
Converter/charger is behind DC Dist. Panel (Can be same location as AC Panel) It has DC Fuses that feed DC Power to individual circuits for: Lights, water pump, t-stat for A/C Unit and Furnace, the furnace, vent fans, control circuits for fridge and water heater.

Basic Block Diagram for RV AC & DC..hope this helps you understand your electrical systems.

You will need a meter or test light to correctly diagnose your issues.

Off hand....your battery is bad and the converter is not supplying power to your 12V system. Without 12V working, your furnace and AC won't have any power from the thermostat. You also have either circuits interrupted by a circuit breaker, a disconnected wire, or a GFCI device. If the toaster oven exceeded the draw of the circuit and multiple resets were tried at the load center, you may have a burnt neutral or power wire in the load center.

when breaker tripped ac was running daughter just got out of the shower so im sure hotwater heater was running and wife started the toaster over. thats when all went out. everything has been working fine till then. i have never tried running the camper off of the battery before. when power went out everything went out. when i reset the breaker only microwave came back on. camper is getting power form pedestal because of microwave is on. i will check all grounds. microwave works, no lights ,no air, no plugs , no fridge. really dont think battery is any good. does the converter just step down power for lights? when i plugged the converter into another power supply lights came on. but thats it. so my guess would be that my problem is before the converter because its not getting power by camper. thanks agian for everyones help. i guess i need to get an electrician out to look at it

The first thing I would do is check the CG voltage with a voltmeter and also check for mis-wired pedestal. Inside your TT, like at a recept., check the voltage hot to ground, hot to neutral and neutral to ground to see if anything is unusual.

Lights going out because the AC supply turned off does not make sense. The lighting is an independent 12 volt system. If the microwave comes on okay, then the AC system is likely okay. Doesn't make sense that the toaster oven would trip the 30 amp main brkr.

Does anything besides lights that requires 12VDC, like the fridge or furnace work? Won't be the cause, but check the DC fuses in the panel. If you disconnect the positive at the battery, do 12 volt things work okay? If you have the battery connected and shore power turned off, does the 12V system work okay? A dead or weak battery would not be the cause of the breaker tripping, but could be part of the answer to the puzzle. With the battery disconnected, what voltage is the converter putting out? I would check and clean connections at the battery and to the frame. How old is the battery?

*If* an AC only problem: Start by turning off ALL branch circuit breakers in the panel in your trailer and leave the 30 amp main ON. If it's stays on, turn on a branch breaker one by one until a breaker trips (if it does). If there is an overload or short on a branch circuit, it should trip the branch circuit breaker only so if one does trip, that's the circuit with the problem. If there is a constant buzzing sound coming from the panel when you have more than one branch breaker causing a buzzing there is a breaker problem. If a breaker buzzes and then quickly turns off, then you have a problem in the circuit itself.

The only thing in common between the AC and DC system would be the grounding at the ground bus located behind the converter panel. There could be a loose ground and you can check the tightness at each terminal. I would also check the ground connection from the bus to the chassis/frame which would a lug connected to the frame somewhere near the converter panel.

If you are at a pedestal with two 30 amp receptacles in it, try plugging into the other one.

Oops, sorry, double posted somehow.

Pretty sure that battery for the camper is dead. Camper has been run on shore power for a while

How do I do that? Just turn off and back on?