How to Repair a Camper Travel Trailer Electrical System

Updated on March 25, 2016
Randy Godwin profile image

Randy is a lifelong lover of the outdoors and especially camping. His articles are intended to help the RVer save money and time on repairs.

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Electrical System Design

Most RV’s and camper trailers utilize the same types of electrical systems as those used for an average small home. But in addition to the 110 volt electrical supply, there may also be lights, fans, a refrigerator, or other electrical devices which use a 12 volt supply, like that of a car or truck.

A 12-volt DC system powers the RV refrigerator to keep food cold while the RV or camper trailer is moving from place to place. The same goes for the lights and fans. It also keeps the on-board batteries fully charged. This system relies on the 110-volt AC electrical power supply for amperage.

It is possible to pull a 12-volt power supply from the RV or camper trailer's electrical system or 110-volt campsite power supply. Then the 110-volt supply can be stepped down to 12 volts after it is run through a power converter and to a particular appliance.

Rewiring a Classic RV

A classic 1946 Spartan travel trailer.
A classic 1946 Spartan travel trailer. | Source

Most of RV systems will switch from the 110-volt AC to the 12 volt DC supply automatically when there is a power interruption. These two electrical systems are treated independently from each other when diagnosing electrical problems, except for determining power to the converter. This translates to:

  • 110 volt power-- > converter-- > 12 volt power-- > 12 volt breaker box -- > refrigerator or lights

As in a home, the 12-volt system has its own set of breakers to control each circuit. The lights, fans, or refrigerator may each be on their own circuits, depending on the amperage required. If the converter is supplying 12 volts to the breaker panel and the breakers test positive for voltage, this leaves the wiring or the particular appliance at fault.

A 1956 Serro Scotty classic.
A 1956 Serro Scotty classic. | Source

Essential Tools and Resources

  • If you are not familiar with electrical wiring or troubleshooting electrical systems there are some very good books available to help you understand and repair common RV electrical problems. I would recommend RV Electrical Systems: A Basic Guide to Troubleshooting, Repairing and Improvement to any novice and experienced electrician alike. It will be an enormous aid to understanding RV electrical systems.
  • Another must for tracing down electrical problems is a voltage meter. This handy tool will allow you to check the circuits for continuity and for the correct voltage required for each breaker. A simple test light can be used but will not test for broken circuits caused by bad wiring or other electrical problems. Both of these tools are inexpensive to own and will more than pay for themselves over time. The voltage meter can be used for home electrical problems as well as any other electrical related problem. Both are offered on this page for a reasonable price.

Troubleshooting Common 110-Volt Problems

  • The 110 volt outlets used in some RVs and camper trailers are prone to shorts because of the way they are installed. Some are merely clipped onto the wiring by cutting into the wires. These types are notorious for not working correctly. Replace these types of outlets with standard house types to put and end to loose connections. Since some of the walls are so thin, a smaller receptacle box may be required for the outlet to fit flush in the walls.
  • Ground fault interrupter outlets are another common cause of electrical problems. These are located in places where a possibility exists of someone touching them with wet hands. They automatically break the circuit when moisture comes in contact with the outlet to prevent shock to the person touching them. A simple reset button must be pressed for the circuit to once again be completed. On occasion they will need to be replaced or the other outlets on the line will not work either. Pay close attention to the instructions when replacing these GFIs.
  • In older RVs and camper trailers you may still find fuses instead of circuit breakers. Since the advent of many new electrical devices, these older fuse systems may not provide enough amperage to handle a microwave or other high amp appliance without blowing a fuse or kicking a breaker. Simply replacing the fuse or breaker with a higher amp substitute may be all that’s required. Replacement of the entire breaker box may be the only option remaining if this doesn’t solve the problem.
  • The newer RVs and camper trailers may have two RV A/C rooftop units which require more amperage than the older models to operate without kicking the standard 30-amp power supply used by many campgrounds. Fortunately, many campgrounds and RV parks now provide 50-amp service for these types of units. When making reservations or checking in, be sure to ask about the availability of a 50-amp hook-up if you own a unit with multiple A/C units.

Keeping your electrical systems in good and safe working order insures a trouble free camping trip with no sudden power outages to ruin the trip. Most problems can be repaired easily if you understand how the system works. RV electrical manuals along with a few inexpensive tools are well worth the cost of their purchase.

If you are completely confused by electrical wiring there are also some very good basic books to start you off. It isn’t very hard at all to check electrical circuits, switches or outlets with an inexpensive voltmeter. Just remember, when touching any wires be sure the power to that particular circuit is off. If in doubt, turn off the main breaker or unplug the RV or camper trailer from the power supply. Happy camping!

Replacement Power Converters

Progressive Dynamics PD9270V Inteli-Power 9200 Series Converter/Charger with Charge Wizard - 70 Amp
Progressive Dynamics PD9270V Inteli-Power 9200 Series Converter/Charger with Charge Wizard - 70 Amp

Power converters for all makes and models of motorhomes and camper trailers available.

 

This article is accurate and true to the best of the author’s knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

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    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      10 days ago from Southern Georgia

      Casey, try turning offal breakers except the main. Then turn the other breakers on one at a time until you find the circuit causing the breaker to trip.

      This should give you an idea of what on the circuit is causing the problem.

      Randy

    • profile image

      Casey 

      10 days ago

      Have a 81 kountry Aire 5th... plug for converter amd breaker keeps popping. Have bench tested con. Replaced breaker and wire... any pointers would be Greatly appreciated.

    • profile image

      Raeshel Seemann 

      5 weeks ago

      Thanks. I'll try that today.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 weeks ago from Southern Georgia

      Rae, replace the GFIC first of all. They are notorious for going bad.

      Randy

    • profile image

      Rae Seemann 

      5 weeks ago

      We connected our 2008 Starcraft Travel Trailer to a new Champion generator. It has 4350 amps starting power. It also has a 20 amp and 30 amp switch. We pushed the 30 amp switch on. Once plugged in, the A/C and the microwave work great. Unfortunately, neither the refrigerator nor the lights and outlets work. We disconnected the generator and connected to our dedicated 30amp RV outlet, with the same result. The 30 amp main circuit breaker, one 15 amp circuit breaker and the GFIC outlet will not reset. I should say the main circuit breaker will reset but will trip when trying to reset the 15 amp breaker. The lights will flicker for a second each time the breakers are reset and the go out again. The breakers trip again. The battery is not connected. Any ideas of where we went wrong and what we can do to fix this. Thanks

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 weeks ago from Southern Georgia

      Connie, do want both 12 volt and 120 volt systems? If so you need to get an RV wiring guide to help you out.

      Randy

    • profile image

      Connie Duke 

      5 weeks ago

      How to wire a wonderer Lite travel trailer 1999

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 weeks ago from Southern Georgia

      Jeremy, pleased to hear you found the problem.

      Randy

    • profile image

      Jeremyholt 

      5 weeks ago

      Thank you very much. I found that loose and also a 12 volt fuseable link was blown under a panel near the ground. Everything is working good now..

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 weeks ago from Southern Georgia

      Jeremy, check the main ground for the 12 volt system. This is the negative battery cable where it attaches to the steel frame of the camper.

      If this connection is loose or corroded it affects the entire 12 volt system.

      Randy

    • profile image

      Jeremyholt 

      5 weeks ago

      Looking for help on a 2010 Nash 25P electrical problem. Camper works on shore power but not battery power. I installed two new batteries and when plugged in to shore power they charge. When I unplug the shore power I lose all power to the camper.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 weeks ago from Southern Georgia

      Ronnie, can you clarify your question a bit?

      Randy

    • profile image

      Ronnie duke 

      5 weeks ago

      What waves go together on a fuse box on a 1999 wanderer lite travel trailer

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      6 weeks ago from Southern Georgia

      Les, glad you found the solution. This makes sense why you had problems. I'm also pleased it didn't cause more damage than it did. Thanks for relating the solution to the problem. :)

      Randy

    • profile image

      Les Lyons 

      6 weeks ago

      Thanks Randy. Turns out nothing wrong with anything to do with GFCI. I traced it back to an open neutral, which was preventing power to anything. Where my long 30 am power cord that connects to shore power ties into the trailer main electrical line, the wiring had shorted out and totally fried the neutral wire. Thanks to God the trailer didn't catch on fire! Did a complete repair and everything is working fine.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      6 weeks ago from Southern Georgia

      Don, thanks for relating the solution to your problem. And yes, I've never heard of such a wiring example before. Good Camping!

      Randy

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      6 weeks ago from Southern Georgia

      Les, check the ground on the breaker controlling the GFIC. It's not uncommon for one to work loose during transit.

      Randy

    • profile image

      DonWillis 

      6 weeks ago

      Hi Randy,

      Finally figured out why the shower and gallery lights quit working. Pulled the bathroom switch off and tested the continuity from the switch to the light and nothing. I recently changed the outside light and thought maybe the wire from the switch ran thru the light and i forgot to connect something. Opened the outside light but nothing. So i started looking around the camper and found 2 wires at the top of the camper that ran down in a sleeve in the canvas that came out and plugged into the base of the camper. One of the wires were broken so i wired it back and that fixed the problem. Kinda strange how then ran the wire on the outside in the canvas. Thanks for your help Randy!

    • profile image

      Les Lyons 

      6 weeks ago

      Randy - only one GFCI in the trailer, so it would be the first one on the circuit. Pulled it out from wall and am getting no power on either side - line or load. If the breaker panel has power but no power in the line to the GFCI ... what else do you think it could be? I really appreciate your help!

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      6 weeks ago from Southern Georgia

      Les, this sounds more like a bad GFIC than anything else. Try changing them out.

      Randy

    • profile image

      Les Lyons 

      6 weeks ago

      Randy - I'm stumped! I have a 2003 Forest River Sandpiper that has been connected to shore power at my ranch for the past 8 years and everything has worked fine. Two nights ago here in Southern California we had a brief "brown-out" and then about 5 minutes later lost all power in the area and it was out for about 5 hours. When it came back on everything appeared to work fine. But last night the AC went off, as did all the power. We had guests in the trailer and I thought it was just a tripped breaker. But there is no 110v power to anything in the trailer (appliances, outlets, etc.) and the GFCI outlet is tripped and won't reset (as it does when it has no power to it). There is power coming into the trailer - I checked at the plug in point, and also checked inside the breaker panel, and there is 110v power to the breakers (tested with a meter). I've unplugged the main 30 amp cord and plugged it back in, and reset all the breakers several times, with no luck. The 12v lights operate, but nothing on 110. Not sure what to do ... could the converter/charger have gotten fried? It would seem it would have happened immediately upon the brown-out / power outage, not 24 hours later. I'm stumped!

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      8 weeks ago from Southern Georgia

      Jonathon, More than likely they were damaged by the reversed current. The radio may be repaired, but I don't know about the stat or receptacle. The latter may be simply a replacement job and may be the former if it's a digital stat.

      Randy

    • profile image

      Jonathan 

      8 weeks ago

      Randy, I accidentally swapped the positive and negative leads when connecting the 12v battery. Since, only a few 12v items do not work, including the radio, TV, a wall receptacle with the car charger and two USB charging ports and the thermostat. The fuse connecting the TV, radio and receptacle was blown and replaced. The TV is working, but the other items are not. Did I damage the other items?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Jim, normally if you have the batteries off, your converter won't keep the 12 volt system properly powered. Your system may be different though.

      Randy

    • profile image

      Jim Mulhall 

      2 months ago

      Hi, Randy

      So, I thought the problem was fixed. But last night, while connected to 30 amp power, with the batteries turned off, we lost all electric power. I then, not knowing what to do, flipped the battery switch back on, and everything then worked. I normally have the batteries off when connected to power. Any thoughts?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Don, check the lights themselves as it could be a bad ground causing this issue.

      Randy

    • Don  Willis profile image

      Don Willis 

      2 months ago

      I have a 2004 Fleetwood sequoia pop-up camper.Both lights at the bunk-end work but the 2 lights above the gallery and shower do not work. Checked all of the fuses and kill switch and all were ok. Took out the 2 switches that control the bunk-end and gallery lights and have 12 volts on the black and yellow that go to both switches. Bypassed the switch going to the gallery lights by hooking the 2 wires together but no luck. Help!

    • profile image

      Nathan Emerson 

      2 months ago

      Thanks for the input Randy!

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Anissa, if you're replacing all of the 110 volt ac wiring, you can use 110 v lights instead of the 12 volt lights many campers use for camping unconnected to shore power.

      I assume you still have the H/W heater left from the previous owner and it will require 12 volts f0r the thermostat. You may need to order a basic RV wiring guide to help in your rebuild.

      Let me know if you run into a problem.

      Randy

    • profile image

      Anissa 

      2 months ago

      Hey Randy,

      Sorry to sound like a complete idiot when asking this question but here it goes. I purchased a 1998 Rockwood T2305 camper for $300.00 with the intentions of complete remodel (needed due to the last owners) they stripped all the copper out of the camper. So I totally gutted the camper out. Even though they left the converter all the wires were disconnected. Any help from start of what I need to finish would be greatly appreciated.

      Anissa

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Nathan, you can install a GFCI, if you feel better about it, but many campsites already use some sort of GFCI on the shore power connection.

      Randy

    • profile image

      Nathan Emerson 

      2 months ago

      Hi Randy,

      So I've got a '61 Airstream Bambi. The original power converter failed and I have replaced it with the PD9245, and a 12volt fuse block as both of those functions were performed by the original converter.

      I've also had to replace the shore plug due to corrosion and such. I am wondering if I should/could install a GFCI outlet where the 110V comes into the trailer?

      On my set up the 110V power from the shore plug feeds into the backside of an outlet where the converter/charger plugs in. The 110V that feeds the house circuit breaker connects through the backside of the outlet. So for surge safety, or any other reason should I do a GFCI there? If so should I ground it to the trailer's frame?

      Thanks in advance!

      Nathan

    • profile image

      Jim Mulhall 

      2 months ago

      Randy

      Thank you so much for your input. I think your input helped me to correct the problem.

      Jim

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Jim, first check the main 12 volt DC ground as it may be loose or corroded. This is the negative battery cable end where it attaches to the steel frame of the camper.

      If this isn't the problem, then check the voltage at the battery. If the converter is good you'll get a reading of at least 13 volts at the battery.

      Both the fridge and AC thermostats use the 12 volt system to operate in most cases.

      Randy

    • profile image

      Jim Mulhall 

      2 months ago

      Hi, Randy:

      My refrigerator and air conditioner keep going off intermittently when I am connected to shore power. The microwave doesn’t go off. I flip the 50 amp a number of times, and then the fridge and a/c restart. What’s going on?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Nancy, can't help you much on this issue. It's different sort of electrical problem than the onboard systems. Sorry!

      Randy

    • profile image

      Nancy 

      2 months ago

      I have a 1977 dodge coachman motorhome giving me both brake and trunsignal problems ive changed battery cables and the dashboard insturment assembly now looking to further try turnsignal switch any help offered is very much appreciated thank you

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Michele, check the main ground which is the negative battery cable end where it attaches to the steel frame of the camper.

      Even if this connection looks good, it may be corroded or loose. Make sure it's clean and tight. Also. check for a relay/fuse on the positive battery connection leading back to the converter. Not all campers have this feature.

      Randy

    • profile image

      michele hannis 

      2 months ago

      replaced converter in 2000 holiday rambler firth wheel and I have no 12 volt so ac off refridge and lights don't work ?what can I do next ? we have 110. help suppose to go on vacation I m missing something ?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Mary, you have a bad ground. Check the main ground in the 120 volt AC power panel.

      Randy

    • profile image

      Maryvanwychen 

      2 months ago

      Why do we keep getting a shock from the outside of my fifth wheel

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      2 months ago from Southern Georgia

      Barb, check the main 12 volt ground first. It's where the negative battery cable end attaches to the steel frame of the camper. This connection should be clean and tight.

      If this doesn't solve the problem, than connect a good battery charger--at least 20 amps--and if everything works properly the converter is more than likely bad.

      Randy

    • profile image

      Barb riebe 

      2 months ago

      We have a 2019 Jayco Eagle fifth wheel. We have no,lights or air conditioner. It seems like the batteries are not charging even thou we are plugged into 50amp. We are at a camp ground now and can’t get slides in etc.

      we have some areas in RV that the power works just now lights or air conditioners. What could be wrong. It seems like it’s not charging the batteries.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Linda, check the converter breaker in the 120 volt panel. It may be tripped or the converter may be toast.

      Randy

    • profile image

      Linda 

      3 months ago

      my son accidentally hooked up the batteries incorrectly and sparks flew,

      no more electricity! what is the first thing I should check?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Phillipa, you'll have to change out the breaker panel and perhaps the converter as well.

      Randy

    • profile image

      Philippa 

      3 months ago

      I have a 1998 35’ fleet woof pack arrow. I want to change it from a 30amp to a 50amp system. Right now the 2 roof top ac unit shed back and forth. Any suggestions on parts list. I know to use c4 wiring. And change receptacle. Redo breaker box and switch.

      The other issue I’m having is the ac is not kicking on but the furnace blower is when I turn on the ac. I replaced the circuit board in Oman 5500 generator because it went bad. Any suggestions on what to check out would be appreciated.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Rhonda, I know very little about slide-in campers. You may to rewire it from scratch if you can't find any info on the schematic. Sorry!

      Randy

    • profile image

      Rhonda 

      3 months ago

      Hello, someone, Anyone help! Lol.... we recently bought a 2009 travel lite 690 ...... it is a slide in Camper....... it has Many issues. Someone cut it up pretty bad inside, don’t know why???? ( took stove & sink, heater out.... air conditioning , fridge & micro work on shore power......but someone cut a lot of wires ( propane area, heater, etc... really don’t know where these wires are, but I KNOW we have an alarm going off. Def gonna need a prof electrician. But, my question. Where ( I have looked everywhere! Even called dealer that 1st sold it . No help! ) please , WHERE is the exterior electric/ wire junction to hook into our truck ( Silverado) it is Not where it should be - behind drivers side , just under the overhang. And, how & where do you turn on running lights????? Even if we are connected to our home (a/c power) or battery, they do not come on........ are we missing a “ switch”...?.?. Generic manuals online are No help. Any help , would be soooooo appreciated...... it is a cute little camper. I cannot believe their is very little info on them! ( wiring diagram would be awesome,)

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Don, this may be a converter issue. Check the voltage at the batteries as they should be getting at least 13 volts from the converter.

      If not, try connecting a good charger to the batteries and see if it solves the problem. If so, then the converter may be bad.

      Randy

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      Don Perkins 

      3 months ago

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      Don Perkins

      1 second ago

      Edit Your Comment (open for 3 minutes)

      I have a 2006 Forest River Cedar Creek 5th wheel that is connected to Shore power from my shop, which has never had any power issues what so ever. I should mention that I only recently added the 50amp breaker and RV outlet...since plugging the RV in, I have had a good two weeks of good power supply running the AC, fridge, and everything else without issue while a guest was staying in it. one night a couple of days ago, the fridge alarmed and eventually the power to the whole trailer went out (less one outlet that had a very small power draw for wifi) and stayed out. I used a multimeter to try and diagnose the problem and found the shop breaker, outlets, and cords all had good consistent power...the line and load sides of the RV breakers also showed proper voltage but there was still no distribution of power to the trailers outlets, lights or appliances (except the small draw wifi unit). –I will also mention here that the battery disconnect was turned to the off position for shore power and if I turned it on, the entire RV would power up all of the 12VDC fixtures. After diagnosing this problem for almost an entire day, I left the unit and when I went back everything was back up and running...

      In the middle of the night the following day, the power started going down again, (fridge alarming exactly as before) but this time after about 2-3 mins the power seemed to stabilize and everything was fine for the next 30 +/- hours. Then it happened again this morning but has remained off like before... please help...thank you!

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Jerry, connect a good battery charger and if the lights work then, the converter may be bad.

      Randy

    • profile image

      Jerry 

      3 months ago

      How do i get the 12volt lights to work on preferred 110 power. The A/C , microwave and out lets work when im plugged in but the 12volt lights only work on the batteries. Shouldn't they all work with or without batteries when I'm plugged in?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Dean. more than likely the GFIC is bad.Replace the GFIC and you should be fine.

      Randy

    • profile image

      Dean L Davis 

      3 months ago

      I have a 2006 Calrson toyhauler. Yesterday all of the 110 kitchen associated plugs and the refrig and freezer stopped working. All of the other plugs in the trailer are working on 110. I located and pulled the 12 volt kill switch. The Frig and freezer and ancillary lights now work but none of the plug ins come on. One of those plugs is a GFIC and I can not get it to reset.

      I am not very knowledgeable on electrical for the trailer but have successfully wired a couple of houses with no burn downs. I would think that there should be a circuit breaker box but am unable to locate one and do not have an electrical schismatic.

      Should there be a circuit breaker box with circuit breakers?? Any clue where it might be. I have looked in the side external storage bins but find nothing. Any other guesses as to what my trailer electrical problem might be??

      Thanks

      Dean

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      3 months ago from Southern Georgia

      Lane, did you check the voltage on the wiring when you changed out the GFIC? If not, do so and get back to me.

      Randy

    • profile image

      Lane 

      3 months ago

      My gfi outlet kicked off i reset it and outlet's still not working, i replaced the gfu outlet but still no power to orher plugs?

    • profile image

      jockosc 

      4 months ago

      Can't get to their website. Heard they closed down. Searching ebay and other places but no luck yet. Thanks for your quick reply!

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      4 months ago from Southern Georgia

      Jock, you may be able to get a diagram from the maker. Otherwise, it's trial and error with a multimeter.

      Randy

    • profile image

      jockosc 

      4 months ago

      Hey! Doing a complete reno of a 2009 r-vision and we're not getting power to the rear end of it. Is there a diagram or way to find where the wiring runs from the fuse box? Thanks for any suggestions!

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 months ago from Southern Georgia

      Tom, this sounds like you're describing the 12 volt breaker/fuse bar. It is grounded to the frame there in some cases.

      Randy

    • profile image

      Tom Meis 

      5 months ago

      Hi, Randy: I am brand new to camping and purchased a 2007 Layton travel trailer. The unit was rebuilt. When examining the electrical system, I found a double tapped wire at one breaker (easy fix) and underneath the breaker box anchored to the floor is a 10 terminal bus bar. The bus bar contains two larger black wires (each in its own terminal) and seven white wires jammed into four of the terminals. The remaining four terminals are empty. A couple of questions: is this safe and legal? Why would a bus bar be connected to the floor? Could this be for the 12 volt side? Any advice if corrections are necessary? Many thanks, Tom

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 months ago from Southern Georgia

      George, check the negative battery cable where it attaches to the steel frame of the camper. This connection should be clean and tight for the 12 volt items to work properly.

      Randy

    • profile image

      George 

      5 months ago

      I own a 2016 T&G teardrop and for some reasons with full charged battery does not power the lights,radio etc in my trailer. Could you help please ?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 months ago from Southern Georgia

      Kristy, yes if you don't want any ot the 12 volt systems to work properly. No hot water, no 12 volt lights, etc.

      Randy

    • profile image

      Kristy 

      5 months ago

      Can I use my RV with out a converter

    • profile image

      Chris caldwell 

      5 months ago

      Yes, i have power to the breakers and it registers power coming out of them as well, last night i did run a cord from the converter outlet that works and wired it into the end of the run for 110v outlets and it received power. I believe its losing power between the breaker and first outlet but not sure which is the first

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 months ago from Southern Georgia

      Chris, there must be a battery, but it doesn't should like the problem any way. Do you get power to the breakers?

      Randy

    • profile image

      Chris caldwell 

      5 months ago

      Hey, i have a 1994 fleetwood prowler tow behind. Ahwile back our campsite lost all power and once everything came back on, the only thing working was the 12v system and 2 outlets located beside the converter. All other 110v outlets are without power. I have changed the converter, breakers, fuses, gcfi outlet in bathroom. Pulled every outlet and checked conections were secure. And still nothing. As far as i know, i cant find a generator hookup or battery

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      5 months ago from Southern Georgia

      Vertigo, connect a good battery charger--not a low amp trickle charger--and if everything works then a new converter is probably needed.

      Randy

    • profile image

      Vertigo 

      5 months ago

      Working on a older bon air tent trailer model# ba1050. Has a Power Dynamics converter in it. Heres whats happening. I plug the 110volt plug into a 20 amp source.Also has a good 12v battery hooked up. Trailer is rated for 15 amp. So when i switch the converter to battery i appear to have lights. But no furnace or fridge. Should be said fridge and furnace are both 12v dc, 110 volt ac and propane. When i switch to the converter setting, the only thing that works are the extra receptacles in the counter designed to plug in house accessories (coffee maker, tv, etc). i pulled the convertor out and tested the wires that are supposed to be producing 12 volts and i get nothing from any of them. There is a white( ground) then a red, black, and two blues coming from the back of the convertor all of which are supposed to be producing 12 volts. All appear to be dead. Check the bus type fuses in the front and they are good. Do you think it needs a new convertor. Just got this trailer and is in good condition other than this electrical issue.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      6 months ago from Southern Georgia

      Pete, I wouldn't think the 12 volt system would affect the 120 volt side, But I've witnessed stranger things. Check the positive battery cable where it attaches to the steel frame of the camper for corrosion and looseness as this is the main ground for the 12 volt system. Let me kow if this doesn't solve the issue.

      Randy

    • profile image

      Pete Heidmann 

      6 months ago

      I have a 2006 T@b with intermittent issues on both AC and DC. I have checked the power supply on the 110 side and it carries through all the way to the converter. The DC system has not been plugged-in for weeks, and the battery may be bad, but even when connected for hours to the vehicle, I can't get either AC or DC functionality. Could the old battery be impeding the whole system? Do I need to evaluate the converter?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      7 months ago from Southern Georgia

      Buster, this is an enigma. I'd like to be able to test the furnace for myself, but this isn't possible. Can you tell me more about the problem?

      Randy

    • profile image

      Buster 

      7 months ago

      I have a 2015 jayco eagle travel trailer. When pulling the camper down the road the fuse will blow on the furnace. I have taken the camper to be worked on and they could not find the problem. If I pull the fuse before I move the camper then I can replace it when I reach my destination and it is fine. I could not find the wiring diagram on the internet. Any help would be appreciated

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      7 months ago from Southern Georgia

      Jim, first check the negative battery cable where it attaches to the steel frame of the camper. This connection needs to be clean and tight, otherwise you'll experience all sorts of strange electrical problems.

      If this doesn't solve the problem, then connect a good battery charger to the battery(s). If everything works normally, then a new power converter may be in your near future.

      Randy

    • profile image

      Jim Nesbitt 

      7 months ago

      I have a 2001 Coleman popup camper, Mesa model. While hunting this fall and doing the dishes, the 12 volt power totally shut down. I was able to use back up generator power but could never get the 12 volt to work again. Battery was good, fuses on converter were good, no loose wires noted. I did replace the circuit breaker in the wiring harness coming from the battery but that did not fix the problem. Still have 110 volt power, no problem. At a lose as to what to do next?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      7 months ago from Southern Georgia

      Carmen, you can still attach a charger to the battery cables as long as you make sure their not touching any metal connected to the camper.

    • profile image

      Carmen Hinton 

      7 months ago

      Randy,I do not have an batteries connected at all.When purchased the camper there wasn't any batteries,do see were they go and post for them on the tung of the trailer.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      7 months ago from Southern Georgia

      Carmen, first check the main ground for the 12 volt system. this is normally the ground cable on the battery which connects to the steel frame of the camper. This connection needs to be clean and tight, otherwise you'll get all sorts of strange electrical problems.

      If this doesn't help, then connect a good battery charger up--not a trickle type--to the batteries to see if the power converter is working or not.

      Randy

    • profile image

      Carmen Hinton 

      7 months ago

      I have 2006 gulf stream coach.im having problems with a breaker throwing.That breaker worked the AC,hot water heater and all inside light.I have replaced the breaker,the lights flickered a couple times,I reset the breaker,now nothing is working except the plug n outlets.

    • profile image

      David 

      7 months ago

      i only found one and that is one of the two that works

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      7 months ago from Southern Georgia

      David, if you have any GFIC outlets they are prone to going bad and affecting the others connected to it.

      Randy

    • profile image

      David 

      7 months ago

      hello Randy i got a 2006 jay flight feather lite camper i got a issue with the plugs only two work and five do not any ideas thanks David

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      7 months ago from Southern Georgia

      Bobby, do you have a power converter and battery aboard?

      Randy

    • profile image

      Bobby Jones 

      7 months ago

      I have a older travel trailer. It has fuse panels in it. I cannot find where the power comes into it. Any ideas?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      8 months ago from Southern Georgia

      Jim, the waterline you mentioned under the shower may be fro draining the water lined during the winter. Most campers have drains for both hot and cold water lines. Check for such a valve as it may've been left open by the last owner.

      As for the electrical question, I hesitate to give you advice about your particular electrical set up as I'm not familiar as to why there should be 3 different inputs.

      One 30 amp power supply should power everything if you only have one AC unless the other plug provides power to the 2nd AC. If you have an onboard generator, this could account for the other 30 amp input, but this is simply a guess on my part.

      Randy

    • profile image

      Jim Coggins 

      8 months ago

      Have a used Teton Homes Grand 5th wheel that I'm trying to figure out a couple of issues with. 1st, when I hook up the water to the "city water", the water flows directly out of a clear PEX pipe right under the indoor shower. I'm thinking when it was winterized, the valve was left open. I can look into this if that is the problem.

      2nd, I'm trying to hook into shore power for electricity. I have a single 30 amp receptacle for the power to plug into (the trailer has 30 amp plugs), but there are 3 different 30 amp plugs, so obviously can't plug all 3 into a single outlet. Right beside the 3 wires, there are 3 empty female 30 amp plugs that seem to be tied together. Should I run one plug to the receptacle for shore power and plug the other 2 into the empty receptacles in the trailer to provide power to all 3? Obviously will not be able to run a lot at one time being only 30 amp, but does my solution sound OK?

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      8 months ago from Southern Georgia

      Sam, you're right. Normally the red and black are positive with the white being the ground. Do you get a reading from the wires with the battery disconnected?

      Were the 12 volt items all working before?

      Randy

    • profile image

      Samtymat 

      8 months ago

      I purchased a used 1984 Terry Taurus 28’ tow behind. It came without a battery. Plugged into 110 volt everything works as it should. I attempted to hook up a 12 volt battery,but I do not get any power from it. I’m not totally sure I have the wires correct. I have three wires. Black white and red. I know the white is ground. The red and black are where my problem is. With both hooked up I should have power in the camper. I don’t. Do you have any idea what I’m missing or what’s wrong? I checked all fuses and they are all fine. Like I said everything works fine plugged in. Thank you.

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      8 months ago from Southern Georgia

      Kchristiana, Over time a breaker can become weak after being tripped many times. Try replacing the breaker before doing anything else.

      Randy

    • profile image

      Kchristian415 

      8 months ago

      I am having trouble with breaker triping seems like if i use anything with heat hotwater coffee pot microwave flips breaker

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      9 months ago from Southern Georgia

      Sam, try cleaning the negative battery cable where it attaches to the steel frame of the camper. If this connection isn't clean, it will prevent any 12 volt appliance or circuit from working properly as this is the main ground for the 12 volt system.

      Randy

    • profile image

      Sam Barnett 

      9 months ago

      light fixture removed from ceiling and wires left dangling. hooked up battery in front to charger to attempt to move slide outs, no go.no lights nothing . no power to outlets, no lights, no moving slide outs ?

    • profile image

      Sam Barnett 

      9 months ago

      camper been sitting three years. electric not coming on in lights or slide outs. hooked up charger to battery up front

    • profile image

      Angel 

      10 months ago

      Thank you, I will check the Ground. Merry Christmas!

      Angel

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      10 months ago from Southern Georgia

      Angel, one of the lights in the circuit should be grounded to a metal part of the camper or to a ground wire. If none of the other lights are working, then check the first light for a ground wire, a white wire is normally the ground wire.

      Randy

    • profile image

      Angel 

      10 months ago

      Have an RV, 12volt lighting. Several lights run on a circuit. The light that did not work anymore is not needed. Want to know how to have the other lights work when failed one removed. I have a black and white for in and black and white for out. Would I connect black to black and white to white. Please advise. Angeleliza41@yahoo.com

    • Randy Godwin profile imageAUTHOR

      Randy Godwin 

      10 months ago from Southern Georgia

      Brandon, have you checked the 110 volt power panel(breaker box) to see if power is getting to the main breaker?

      Randy

    • profile image

      Brandon 

      10 months ago

      I recently received a 1998 Skyline Layton 3090 travel trailer. It is a standard 30 amp circuit. I replaced the plug for a newer one. This is then plugged into a 30 amp outlet. I have checked the wire ends to make sure they are clean. I have yet to determine why I can't get power to the trailer. I'm leaning towards bad breakers, or faulty power center. Any ideas?

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