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RV Lights Not Working on Shore Power

When you’re out on the road in your RV, having functional lights is crucial for safety and convenience.

However, it can be frustrating when your RV lights refuse to work on shore power.

In this comprehensive troubleshooting guide, we will explore the common causes behind this issue and provide you with practical solutions to get your lights up and running again.

RV Lights Not Working on Shore Power: Possible Causes and Solutions

Electrical Connection Issues

Loose or Corroded Connections

One common cause of RV lights not working on shore power is loose or corroded connections.

Over time, the electrical connections between the RV and the shore power source can become loose or develop corrosion, leading to a loss of power.

To resolve this issue, start by inspecting the electrical connections at both ends.

Ensure that the plug is securely inserted into the shore power outlet and that there is no visible corrosion.

If corrosion is present, use a wire brush to clean the connections and apply a corrosion inhibitor to prevent future buildup.

Faulty Power Cord

Another potential culprit behind malfunctioning RV lights on shore power is a faulty power cord.

Power cords can wear out over time, leading to internal damage or broken wires.

To determine if the power cord is the issue, try using a different cord to connect your RV to the shore power source.

If the lights work with the new cord, it’s a clear indication that your original power cord needs to be replaced.

Consider investing in a high-quality, heavy-duty power cord to ensure a reliable connection.

Tripped Circuit Breaker

Locate the Circuit Breaker Panel

In some cases, the RV lights may stop working due to a tripped circuit breaker.

The circuit breaker panel is usually located in an easily accessible area of your RV, such as the bedroom or hallway.

Check for Tripped Breakers

Open the circuit breaker panel and visually inspect the breakers.

A tripped breaker will be in the “off” position or slightly pushed to the side.

To reset a tripped breaker, firmly push it to the “off” position and then back to the “on” position.

If the breaker trips again immediately or repeatedly, it indicates an underlying electrical issue that requires professional attention.

Blown Fuses

Locate the Fuse Box

Another potential cause of RV lights not working on shore power is a blown fuse.

The fuse box is typically located near the circuit breaker panel or in a compartment near the battery.

Inspect and Replace Blown Fuses

Open the fuse box and carefully inspect each fuse for signs of damage.

A blown fuse will have a broken filament or a visibly burnt appearance.

To replace a blown fuse, use a fuse puller or a pair of needle-nose pliers to remove the faulty fuse.

Replace it with a new fuse of the same amperage rating, which is typically indicated on the fuse itself.

Inverter or Converter Malfunction

Understanding Inverters and Converters

Inverters and converters are essential components of your RV’s electrical system.

An inverter converts DC power from your RV’s batteries to AC power for the lights and appliances, while a converter does the opposite by converting AC power from shore power to DC power to charge the batteries.

Troubleshooting the Inverter and Converter

If your RV lights are not working on shore power, there may be an issue with the inverter or converter.

Check the inverter and converter for any visible signs of damage, such as loose wires or burnt components.

Consult your RV’s user manual or contact the manufacturer for specific troubleshooting steps related to your model of inverter and converter.

In some cases, resetting the inverter or replacing a faulty component may be necessary.

Battery Disconnection or Failure

Check Battery Connections

RV lights not working on shore power can also be a result of battery disconnection or failure.

Ensure that the battery connections are secure and free from corrosion.

Clean the battery terminals with a wire brush if necessary.

Test the Battery

Use a multimeter to test the voltage of your RV’s battery.

A fully charged battery should read around 12.6 volts.

If the voltage is significantly lower, it indicates a weak or dead battery that needs to be recharged or replaced.

FAQs (Frequently Asked Questions)

Why are my RV lights not working on shore power?

RV lights may not work on shore power due to loose or corroded connections, a faulty power cord, a tripped circuit breaker, blown fuses, inverter or converter malfunctions, or battery disconnection or failure.

How can I fix loose or corroded connections?

Inspect the electrical connections at both ends and ensure they are securely connected. If corrosion is present, clean the connections with a wire brush and apply a corrosion inhibitor.

What should I do if the circuit breaker is tripped?

Locate the circuit breaker panel in your RV, check for tripped breakers, and reset them by pushing them to the “off” position and then back to the “on” position. If the breaker keeps tripping, consult a professional.

How do I replace a blown fuse in my RV?

Locate the fuse box, inspect each fuse for damage, and replace any blown fuses with new ones of the same amperage rating.

What steps can I take to troubleshoot the inverter and converter?

Check for visible signs of damage in the inverter and converter, consult the user manual or manufacturer’s instructions for troubleshooting steps specific to your model, and consider resetting or replacing faulty components.

How do I test my RV’s battery?

Use a multimeter to test the voltage of the battery. A fully charged battery should read around 12.6 volts. If the voltage is significantly lower, recharge or replace the battery.


Experiencing issues with RV lights not working on shore power can be frustrating, but with the troubleshooting steps provided in this guide, you can quickly identify and resolve the problem.

Remember to check for loose connections, tripped breakers, blown fuses, inverter or converter malfunctions, and battery issues.

By following these steps, you’ll be able to enjoy well-illuminated adventures on the road with your RV.