At 183S/45 Toll Rd south east of Austin, 9-mile south of Bergstrom Airport
FOR INFORMATION: (512) 980 0568

RV Electrical Troubleshooting Tips

When using a recreational vehicle, it is important to remember various tasks to fully enjoy all of its features. Neglecting minor adjustments or quick maintenance steps can lead to user errors that can prevent you from having a great experience. Fortunately, the owner’s manual includes several basic troubleshooting tips that can help resolve minor technical problems. However, it should be noted that these tips are not specific to your vehicle or equipment.

No power to the RV

To ensure that an RV has power, several steps need to be taken. First, check that the RV’s power cord is properly plugged into a shore power outlet with the correct rating of either 30 Amp or 50 Amp. Additionally, make sure that the RV’s battery disconnect is turned on to allow for 12VDC power to flow. Next, confirm that the 120VAC main circuit breaker and park hook-up circuit breaker are not tripped. If the RV is plugged in at home, check that the breaker has not been tripped. If a surge protector is being used, make sure it is functioning correctly. If using a generator, check that the 120VAC circuit breaker on the generator is not tripped or turned off, and ensure that the shore line cord is plugged into the dedicated generator outlet if necessary.

The converter is overheating or not working correctly

To address a converter that is overheating or not functioning properly, several steps can be taken. Firstly, it’s important to ensure that the RV is receiving adequate power and is plugged into a 120VAC outlet. Additionally, it’s necessary to verify that the 12VDC fuses are not blown and that the battery connections are not reversed, which can cause a blown fuse. Monitoring the battery’s charge level on the panel and charging it if necessary is also recommended. Proper airflow around the converter should be ensured to prevent overheating, and if there are excessive electrical loads, it may be necessary to reduce the load for optimal operation.

Inverter is overheating or not working correctly

If an inverter is not functioning properly or overheating, it is important to check various factors. Firstly, ensure that the RV has adequate power and is plugged in to 120VAC. Secondly, check that the 12VDC fuses are not blown at the power converter, and the battery is fully charged on the monitor panel. If needed, charge the battery. Thirdly, ensure that the inverter has proper airflow to prevent overheating. Fourthly, check that the GFCI the appliance is plugged into has not tripped, and the 120VAC circuit breaker is turned on and not tripped. Lastly, excessive electrical loads can reduce operation efficiency, so it is necessary to reduce the load if needed.

Interior lights flicker or are dim

If the interior lights in an RV flicker or appear to be dim, it could be due to a few reasons. Firstly, it’s important to check the battery level and ensure that it’s fully charged by monitoring the panel. Additionally, the battery may need to be charged or the RV can be plugged into a 120VAC shore power source. It’s also crucial to verify that the battery cables are clean and tightly connected. If the converter is overloaded, it’s advisable to open the cover to allow it to cool down and reduce the electrical load by turning off some 12VDC lights. It’s essential to check that the 12VDC fuses are not blown at the power converter. In case of a possible converter malfunction, it’s best to have it checked by an authorized service center. Lastly, if the interior light issues persist, the bulbs may be loose or defective and would need to be tightened or replaced.

No power to the kitchen, bath or outside receptacle

To troubleshoot the problem of no power to the kitchen, bath, or outside receptacle in an RV, one should ensure that the battery disconnect is turned on. Additionally, the circuit breakers at the RV’s power center should be checked, as the 120VAC circuit breaker may have been turned off or tripped. The park’s electrical hook-up should also be examined to see if there is power or a tripped breaker. It is possible that the GFCI receptacle has been tripped and requires resetting. Another possible cause of the problem might be overloaded electrical circuits due to excessive use of appliances, which can cause breakers or GFCI to trip.

The generator fails to crank, cranks slowly, or won’t start

If the generator fails to start, cranks slowly or doesn’t crank at all, there could be several reasons behind it. Firstly, check the battery and ensure it is fully charged or charge it if needed. Confirm that the battery connections are clean and tightly connected. Make sure that the RV’s battery disconnect is switched on, allowing the 12VDC power to flow. Additionally, check the 12VDC fuses and 120VAC breakers at the power converter and/or genset and make sure they are not blown. If a load is connected, disconnect it before attempting to start the generator. Low fuel levels in either the generator or the motorhome (less than 1/4 tank) may prevent the generator from receiving fuel. Another possible cause could be low oil levels or incorrect oil viscosity. In the case of a varnished carburetor, refer to the manufacturer’s owner’s manual for cleaning instructions. Lastly, excessive temperature or altitude may also cause the generator to malfunction. When a circuit breaker trips, it is likely due to an overloaded circuit. In this case, the solution is to turn off some of the electric load and reset the circuit breaker. If there is no electricity in the coach, it is important to check that the 12VDC fuses are not blown at the power converter or genset, and also verify that the 120VAC breakers are not blown at the power converter or genset. Additionally, it may be necessary to ensure that the shore line cord is plugged into the dedicated generator outlet.

Cummins – Onan Generator Troubleshooting Guide


Leave a Reply

Your email address will not be published. Required fields are marked *

The Ride RV

Welcome to The Ride RV Blog, your ultimate resource for all things RV and outdoor adventure! At The Ride RV, we're passionate about connecting people with nature and the open road. Our blog is designed to inspire, inform, and guide you on your journey to explore the great outdoors with ease and confidence.

Here, you'll find a wealth of articles on everything from RV tips and tricks to breathtaking travel destinations, must-see attractions, and insider advice on making the most of your RV vacation. Our team of experienced RV enthusiasts and outdoor lovers is dedicated to sharing their knowledge and expertise to help you create unforgettable memories with friends and family.

Whether you're a seasoned RV traveler or just starting to discover the joys of hitting the road in a home on wheels, our blog has something for everyone. We'll keep you updated on the latest trends, gadgets, and best practices in the RV world, as well as provide you with inspiring stories from fellow adventurers and the scenic routes they've explored.

Join us as we embark on this exciting journey together, and let The Ride RV Blog be your compass to a world of exploration, freedom, and adventure. Embrace the Ride and discover the joys of RV travel with us today!