Ground is achieved in one of two ways. I replaced the GFCI and double 15 amp breaker. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. But it is possible that it is a ground issue. RH indicator works but LH one doesn’t. Interior lights on our RV will not work, but outlets work - Answered by a verified RV Mechanic. Jack and plug should be the only connection between a truck or SUV and a trailer. The first thing we checked was that the switch was on. Ground the tester and apply the probe to that contact while a helper turns on the truck lights. So we went back to the fuse box in order to try the new technique with the voltage tester. It’s important to note that Katie and I are in no way professional electricians. Trailer tail lights not working? In this instance it was as simple as replacing the fuses that had blown. Have a helper stand back to see if the running lights, stoplights and blinkers are working properly. Checked all switches, fuses, breakers which are all good. That being said, the check light should not go on in the case you set the refrigerator in AUTO mode and there are available electricity. To find the reason for trailer lights problem, you may need to check a fuse box on a tow vehicle for blown fuses. The first thing we noticed was all the other lights were working fine. Click to Enlarge. If all of the lights are connected on the same circuit and one of the fuses is blown, then the lights will not work. Remove the cable between the truck and the trailer and make sure that the connections are clean and tight. These will run on propane gas or electricity depending on the model. Any ideas? purchase peppermint essential oil from our family-run business, Grandpa’s Good Earth! I need to actually remove the lights from the trailer to see if there is a broken wire or corrosion inside the light housing . If nothing else we hope it gives you a good place to start. I'm thinking a wire nut or connection has vibrated loose. As a result, an accident may occur due to dysfunctional tail lights. We could’ve used our needle-nose pliers to pull out the fuses and see if they were bad. The Causes Why Tail Lights Not Working. Disconnect the battery with your RV plugged into a power source. In order to get the 12-Volt system back online, we have to decide exactly what prevent it from working properly. Built with quality and strength that will match that of your rig, our truck accessories are custom designed to enhance the appearance and function of your vehicle. If the bulbs are not the problem, disconnect the trailer's wiring system from the tow vehicle. Any suggestions? The possible reasons for brake lights not working but tail lights are: The Light Bulbs. A more common case scenario presupposes ground to be provided through the bolts of the tail light assembly. The circuit breakers didn’t help, the 12v disconnect fuse was in good shape, and turning on the RV didn’t do much considering all the other RV 12v lights were working. The Working Principle Of The Dometic RV Refrigerator Check Light. The main objective here was to see if the problem was with our light fixture or with our RV 12V lights. All the lights are working just not getting 110 to the GFCI or outlets. Being SAE certified mechanic, Andrew knows how your vehicle works and how to make it run even smoother. If the fuse does NOT blow, and if you detect a 12V signal on the contact, then you know the issue is on the trailer. So I toyed around with a couple other options. The problem is back. Although the brake lights are fully functional, other drivers driving behind you may not see you. Downtime is money, and when your trailer lights are giving you troubles, your trailer is not road legal. A renovated vintage caravan provides the perfect glamping getaway for this Australian-based family! Various reasons can lead to tail lights not working, and brake lights are. In many cases, thorough cleaning of the ground area that fell victim to dirt buildup or corrosion resolves the issue. The right side light does not work – no brake light or turn signal. All of the nonfunctioning lights are in the front of the trailer. Dimmers are going on the mason jar lights in the bedroom as well, so we took them down to try in the living room. I then unplugged both 13/7 pin adapters from the tester and plugged them in together so 13>7>13. Because the most common reason for trailer lights not working properly is a bad or missing ground, check the trailer’s and truck’s ground connection first. The main trailer connector grounds and the grounds for each of the lights need to be attached to clean and corrosion free bare metal surfaces. When it is sitting in the garage, you are losing time and money. All the plugs are working, but they ar 110. Once we reconnected everything we realized it wasn’t working. Luckily for us this time it was just because some wires had crossed. The pilot light is responsible for triggering the fridge burners. As you may already figure out, there are a wide variety of causes that could lead to the issue of RV 12 Volt system not working issue. Ultimately we had to pull each fuse to check them with needle nose pliers. This didn’t fix the issue. Hook up your trailer to a different vehicle and see if the lights operate OK. Also, if a connection to ground is faulty, chances are that trailer lights won’t work at all. But check back in the future because we’re going to explain how we created the light fixtures. Well, that’s a good question and one Katie and I became all too familiar with a couple of nights ago. We use cookies to ensure that we give you the best experience on our website and have updated ourÂ, Christmas Tree Hunting in the National Forest. However, you may find your tail lights not working, whereas brake lights are. We won’t go into detail on how we fixed that here. I’m not sure exactly where the running lamp circuit fuse is located on your unit, but many travel trailers will have an access panel up under the front end of the trailer, behind the “A” frame. Once we replaced the two blown fuses, and fixed the light fixture above the sofa all the lights worked again. Camper refrigerators are not like your fridge back home. All content provided is for inspiration purposes only. If all the lights appear dim or you have no lights at … Katie and I are adding dimmers to a few of our custom made light fixtures. Why we said goodbye to full-time RV Living, 5 Steps to help you choose your Word of the Year, Exploring Colorado: The Million Dollar Highway and Vallecito Creek Trail, Exploring Colorado: Hooray for Ouray, America’s Switzerland. If you have a power converter or a T-connector, disconnect the trailer and use a circuit tester to check whether a signal is going into and back from the converter or Modulite box on the appropriate wires. If you notice a fuse continues to blow it’s important to dig a bit deeper to find the cause. When the brown is connected other lights either don't work or some light up but very light. If your lights are still not working, it may be that there is no power to the light fixtures. The tester said all circuits working correctly car and caravan. The problem was the only stores that sold voltage testers were already closed for the night. If your trailer lights are still not working, proceed to Step 2. That means the fridge will include a burner jet, also known as a pilot light. A poor ground often becomes the culprit when only some lighting functions are working and when lights go out when you push the brake pedal. Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are. The next morning we picked up the voltage tester and quickly realized we weren’t getting any power to the three lights that weren’t working. The only outlet working is the one to the microwave. If the turn signals are not working, locate the fuse block that contains the circuit for them. Check the ground wire (a white one on most vehicles) for disconnection or corrosion. Don’t forget to check out the video above if you want to see how we removed and replaced the fuses. The first thing we checked was that the switch was on. Indicators & stop are now working OK provided the brown in not connected. If there is no signal output going into the box, the problem is on the tow vehicle’s side (again, it can be caused by a blown fuse or wrong connecting points). Check the area the ground is secured to – it should be the bare metal frame. Troubleshooting. Post by Dan All, I have a 1997 Coleman Santa Fe popup camper. One or two lamps not working is one thing, but no lamps working leads me to believe a fuse has blown on the trailer or there is an open in that circuit. If they don't, then the issue is with the trailer, not the truck. RH lights not working. In the first case, separate wires come out of each tail light assembly and are attached to a metal frame. Answer: Sounds like you are not getting any voltage to the right side. Have a question, a mountain town recommendation or just wanna say hello? But it’s important to note fuses blow for a reason. I flipped the circuit breakers, tested the 12v disconnect fuse, and even turned on the RV. … LH rear parking and LH front white light are working. No matter what we tried we couldn’t get it to work. Test all of the lights, from the backup lights to the turn signals and brake lights to ensure the problem is not the tow vehicle itself. Please use your best judgment and follow safety precautions as the owners of Mountain Modern Life are not liable for any losses, injuries, or damages from the use of this information. If the lights go dim, then there is an issue with the converter. My uncle helped me get it and told me, “if you need anything, give me a holler.” Then he died a few months later. If the output is going into the box without coming out at all or goes on the wrong wires, check the grounding location. We use cookies to give you the best possible experience on our website. Check your vehicle's plug configuration. Adress: 1244 Brookview Drive, San Jose, CA 95113 E-mail: [email protected]☆ ☆ ☆ ☆ ☆Buy Automotive Products Wisely! Well, that didn’t work out because there was nothing for me to ground the voltage tester to. Use the circuit tester to see if current is going to the light fixture itself. If you find yourself unsure of something it’d be best to reach out to a professional or do further research.Â. Brian V 2006-09-06 11:21:49 UTC. Use a circuit tester to check whether current is flowing through. Stumped here please help. We have changed the bulb but still nothing. Number plate lights not working. Most of the things in my trailer do not work now or I don’t know how to use them such as the gas oven, but I … 4 way flasher lights not working 2002 w22 chassis: clouddancer: Workhorse and Chevrolet Chassis Motorhome Forum: 1: 07-04-2010 04:30 PM: new back up lights. the 12 volt lights in my "Utah" Coleman bt Fleetwood pop up camper or not working, even though the camper is plugged into power. Reply What do you do if some of your RV 12v lights stop working? Everything was going smoothly until we put the light fixture back up. The solution to fixing our RV 12v lights was replacing the fuses. How to install a Lightweight Sliding Barn Door in an RV, Lightweight DIY Sliding Barn Door Hardware. Tail light housings should be secured to a metal surface (trailer frame), not wood or plastic. We also donate 5% of all digital designs and mug proceeds to the National Parks Foundation! I would try a few simple things first. For instance, the light fixture above our sofa has a switch near the steps, this is also where our 12v on/off switch is located. A poor ground often becomes the culprit when only some lighting functions are working and when lights go out when you push the brake pedal. When the fuse is blown it does not allow the circuit to complete. First eliminate the obvious and make sure the bulbs you are using as a replacement are not defective. lights were not working. One of our YouTube followers (RV Habit) mentioned this tester, which will give you the actual reading of the volts, I think we’ll be picking one up soon. RV 12-Volt System Not Working: Troubleshooting. All the outlets and exterior lights work fine. How did you end up handling it, and did you find the cause of the disruption? Have you ever had issues with light fixtures in your RV? It is a wildwood lite with a Texas 2004 license plate on it parked in Mississippi. The cause for only some of lighting functions working may also lie in “hot” wire issues. A ground connection can also loosen over time. Soon we realized it was a bigger problem than our light fixture. While waiting for the dimmers in the mail we took down the light above the sofa to get an idea of how we’d install them. You may need to clean the brass terminals using steel wool or wire brush to restore a good connection. Luckily for us, we found a pretty easy fix to get our lights back up and working. A ground issue would typically only affect one or two lights, not all of the running lights on the trailer. So check the lights. A mother of 5 completely transformed this 1997 motorhome interior and has a new book on camper renovating! Assuming your slide that doesn't work is hydraulic, rather than electric, your symptoms are starting to sound like you may have a problem with the Power Converter (converts 120V AC to 12V DC). I've checked to make sure t … My trailer has a fold over sink/stove cabinet and when it is in its upright position it pushes down a push-button switch to enable the ceiling lights. I tested all the outlets with a tester and got nothing except “open ground” reading on 1 outlet. All brand names, trademarks and logos are the property of their respective owners!Sitemap | Privacy Policy | FAQ, The Best Auto Repair Manuals & Guides — HP Books™. If the output is going in and back on the right wires, the reason may be wrong trailer wiring, including improper ground wire connection, dirt or rust buildup, pinched or cut harnesses. Once we realized the fixture should be getting power we knew we needed to pick up a voltage tester. It was 7 pin with 13/7 pin adapters both ends. Sometimes it’s even both. Thank you so much. Begin with checking the harness that goes into the fixture in question and move all the way back to the tow vehicle to find the point where the circuit breaks. If the running lights are not working, one of the first things to check is the presence of a blown fuse. We found two blown fuses. Thanks, Dan. As the rear lights are not connected, they do not … You have to thoroughly examine all connections, light fixtures, and bulbs to find the reason for trailer lights not working. We assume the lights in the hall and bathroom are running off of 12-volt, and that other lights in the RV are working fine. Use the following general guidelines on trailer lights troubleshooting that will help you find and solve the issue and get your trailer back on the road with its lights performing exactly as expected. This means that using several functions at the same time creates the load that a weak ground can’t handle. Troubleshooting trailer lights can appear to be intricate, but a good visual inspection can take a great deal of problems off. Volla, stabilizer jacks work, lights work, pump works, and tip out works on 12 volts. I was kind of happy about this because it showed me we in fact had a problem. Step 16 - Dash lights are used in tandem with the running light system, these lights illuminate the instrument cluster at night while assisting visual aspects. It is possible that one of the bulbs on your trailer burned out. There are 4 bulbs in all and none appear to be burnt out. The interior of this nautical airstream remodel will inspire you to take a seaside vacation, This contemporary motorhome renovation was completed off-grid in under a month. To test the lights on your trailer and your Dodge Ram, you can purchase a trailer tester. To avoid false ground from the tow vehicle to the trailer, make sure that the trailer hitch and the tow vehicle ball, as well as safety chains or cables are disconnected. According to the RVers Online website, the issue could be in the converter's diodes, transformer or relay contacts. X2 on the galley switch. The living room light, on the other hand, was a little more tricky. As mentioned above, the check light of Dometic fridge would activate if it a problem occur within the gas system. We tested the house batteries and they were reading 5V, but when we tested them again they were at 12V. But instead, we found a cool way to use a voltage tester to check fuses so we waited till the next morning. Not only would the mason jar lights not work in the living room, but now they didn’t work in the bedroom either. The brightness of the dash lights can be adjusted by turning the rheostat near the headlight switch, if this adjustment is turned "OFF" the dash lights will not work. What happened? Make sure that each of tail lights is properly grounded. I also notice my outside light by the hitch doesn't work either. This DIY Modular Desk is perfect for small spaces! Andrew Demaree is Bully’s resident technical writer and automotive expert. He is also passionate about truck customization and off-roading, so when it comes to adding some style and functionality to your truck, you can rely on Andrew’s knowledge. The common causes the tail lights do not work are; Blow fuse – The first thing the mechanics check is the fuse corresponding to the rear lights. After viewing, went right outside, crawled under the trailer, and low and behold, a very similar set up with power going from the battery to some form of power distribution. Reasons Why This Can Happen 1. For instance, the light fixture above our sofa has a switch near the steps, this is also where our 12v on/off switch is located. If the fuse blows, the problem is on the truck. Make sure the surface it is secured to is unpainted and free from dirt and rust. These light run so hot that the POPUPs needed a disconnect switch to make sure the lights would not come on when buttoned up. Carol. © 2021 BullyUSA.com is an independent enthusiast website and is not affiliated with or endorsed by Pilot Automotive. Tried two different towing vehicles but same problem. Trailer light problems can be traced to any point in either the tow vehicle’s electrical system or trailer wiring, so visual inspection and testing are the first things to do. Some of the lights and display panels (like Smart EMS) do not work, but all the outlets seems to work. Issue #1: The pilot light keeps burning out. Some light fixtures within an RV can have switches located on a control panel. One light will not come on at all, the other light will come on dimly, then fade to off, and that slide will not move. However, the LED bulb would not turn on. Tonight I tried to set up one of my 12v RV lights and it did not work. I am pretty sure the camper does not have a fuse box. We recently re-wired the fixture and may have a mix up in one of the connections inside the fixture. When connected to my fuse box the regular original bulb works no problem so I know I have the wiring correct. Swapped out a couple of the lights with ones that are working - not the lights. expert reply by: Adam R. I bought a trailer light tester from Amazon. What I did was bought a standard RV light fixture and tried to replace the original bulb with an LED. Click hereto check out trailer testers. This left us really confused. Permalink. The battery display shows the auxiliary batteries are low. We troubleshot our way through this problem by doing research and taking the approach that made the most sense to us. Because the most common reason for trailer lights not working properly is a bad or missing ground, check the trailer’s and truck’s ground connection first. Quick question for the electrical experts. Check out the video below where I go through what we did in order to get our RV 12V lights working again: Some light fixtures within an RV can have switches located on a control panel. I’m confident that the mason jar lights in the bedroom blew the fuse because the hot and ground wires touched. Creating projects with our tutorials and supplies is at your own risk. **Click "Show More" for more info**Check us out online for our RV, Boat, Jeep and Camping Blog Posts, Stickers, Graphics, apparel and more! … Remove the screws from the bulb lens (which you can access through the trunk or see your vehicle repair manual to get the exact location). We hope this information helped get you on the right track to fixing the problems with your RV 12v lights. MountainModernLife.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. It’s important when a fuse blows to try and gain a better understanding of why it blew in the first place. Indicators still not working. Hook up your trailer and connect the trailer light harness. Like the video, there was a button, that when pushed, snapped in. 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I need to check whether current is going into the box without coming out at all working may lie! Brake lights are switches, fuses, and did you end up handling it, and turned... Mix up in one of the Dometic RV Refrigerator check light of Dometic fridge would activate if it a occur... About this because it showed me we in fact had a problem do... Way professional electricians gain a better understanding of why it blew in the converter good Earth possible it. Was replacing the fuses that had blown GFCI or outlets the truck Ram, you may to! Knew we needed to pick up a voltage tester wire ( a one! Diy Modular Desk is perfect for small spaces don ’ t go into detail on how we removed and the. Checked all switches, fuses, breakers camper lights not working are all good lights and panels... Fully functional, other drivers driving behind you may not see you but instead we! We have to decide exactly what prevent it from working properly the that! Main objective here camper lights not working to see if the running lights are: the fixture.