A Troubleshooting Guide To Fix WFCO RV Converter Not Working

Are you experiencing issues with your WFCO RV converter? Don’t let this problem ruin your next camping trip!


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This troubleshooting guide will walk you through the common causes and solutions for a malfunctioning WFCO RV converter. We’ve got you covered, from checking the fuse to troubleshooting the power source.

With our step-by-step instructions, you’ll be back to enjoying all the comforts of home in no time. So, if you’re ready to get your RV converter up and running again, read on!

WFCO RV Converter

WFCO is a well-known brand of power converters that are often used in Recreational vehicles (RVs). The main function of these converters is to convert the incoming alternating current (AC) power from a campground or generator into the direct current (DC) power required to operate the various appliances and systems in the RV. They are considered dependable and easy to use, and many RV manufacturers use them as a standard component in their vehicles.

WFCO RV converters come in different power ratings ranging from 35 to 80 amps and include a built-in charger for the RV batteries. Some models of these converters also feature additional components such as a transfer switch, circuit breaker, and an in-built distribution panel.

Why Is It Necessary That The RV Converter Should Work Properly?

It is necessary for the RV converter to work properly because it is responsible for converting the electrical power from the RV’s batteries or generator into the type of power that is used to operate appliances and lights within the RV.

If the converter is not functioning properly, the appliances and lights may not work or work efficiently, which can lead to a lack of power or even damage the appliances. A malfunctioning converter can also be a safety hazard if it is not properly regulating the power levels.

Signs That Your WFCO RV Converter Is Not Working

The converter in an RV is responsible for converting the alternating current (AC) power from the electrical grid or generator to the direct current (DC) power used by the RV’s lights, appliances, and other electrical systems.

If the converter is not working properly, it may not be able to provide enough power to these systems. Here are some signs you can look out to check your WFCO RV converter is not working.

Dim Or Flickering Lights

One of the most obvious signs that your converter may not be working properly is if your RV’s lights are dim or flicker. This could be an indication that the converter is not providing enough power to the lights.


A burning smell from the converter area can signal that the converter is overheating. A malfunctioning converter or another issue could cause this.

Battery Not Holding A Charge

If you notice that your RV’s battery is not holding a charge, even when you are plugged into a power source, this could indicate that your converter is not working properly.

Status Lights Or Digital Display

 Sometimes, the converter’s status lights or digital display may indicate a problem. For example, if the converter’s “on” light is not illuminated or the digital display is showing an error message, this could be a sign that the converter is not functioning as it should.

Troubleshooting WFCO Converter Not Working

Before going to the mechanic, you may save a few bucks by checking your WFCO converter. Here’s how you can know if your converter is not working.

Check The Voltage Of The Battery

The first step in determining if your WFCO RV converter is not working properly is to check the battery’s voltage while the converter is plugged in. The voltage should be at least 13.2 VDC. If the voltage is lower, it may indicate that the converter is not functioning properly.

To check the voltage, you will need a multimeter. Simply set the multimeter to the DC voltage setting and touch the leads to the positive and negative terminals of the battery. If the voltage is too low, it could mean that the converter is not working properly.

Check The Fuses

The WFCO converter has two fuses, one for the DC side and one for the AC side. Check both fuses to see if they are blown. If they are, replace them with new fuses of the same rating. A blown fuse can cause the converter to stop working.

You will need to locate the fuse box on your RV to check the fuses. It is usually located near the converter. You can refer to the owner’s manual for the exact location. Once you have found the fuse box, you can check the fuses and replace them if necessary.

Check The Lights And Appliances

If the lights and appliances in your RV are not functioning properly, it could be a sign that the converter is not working. Check to see if the lights and appliances are working properly. If not, it could indicate a problem with the converter.

You can check the lights by turning them on and observing if they are working. You can also check the appliances by plugging them in and observing whether they are working. If the lights and appliances are not working, it could mean that the converter is not providing enough power to them.

Check The Temperature Of The Converter

Another way to check the converter is by checking the temperature of the converter. If the converter is running hot, it could be a sign of a problem. If the converter is too hot to touch, it may be a malfunction and should be checked by a professional. You can check the temperature of the converter by simply touching the converter. It could be a sign of a problem if it is too hot.

Get Help From Test Light

A test light is a useful tool that can be used to check for voltage in various electrical systems. It resembles a screwdriver and has a tip that lights up when it comes into contact with a conducting surface. To use it to check the converter fan, you can press the tip on the fuses and look for a reading of between 12-13 volts. This will indicate that there is power present at the fuses.

Additionally, you can check the wires on both the positive and negative terminals to ensure that power is flowing through them. This will help you determine if there is a problem with the electrical system preventing the fan from functioning properly.

Check Converter Fans

The converter fan is a crucial component that helps cool the power converter’s internal parts. It should turn on and off periodically. If the fan is not functioning properly, the converter may overheat and fail prematurely.

A multimeter can be used to determine if the fan is getting power. If the power exists, but the fan is not working, it may be necessary to replace it. This can be a more cost-effective solution than replacing the entire converter.

Check The Resistors

Another way to troubleshoot the converter fan is to check the resistors. These are components that control the amount of current flowing through the fan. If a resistor is faulty, it can prevent the fan from receiving enough power to turn on. Using a multimeter, you can test the resistance of the resistors to see if they are within the normal range. If they are not, they may need to be replaced to restore proper function to the fan.

Consult The Owner’s Manual Or Contact WFCO

If you are still unsure the converter is not working properly, it is best to consult the owner’s manual or contact the manufacturer for further assistance. They will be able to provide more detailed troubleshooting steps and guidance. They can also advise you on whether or not the converter needs to be repaired or replaced.

Consider The Age Of The Converter

The WFCO converter’s lifespan is around 5-7 years. If your converter is older than that, it may be time to change it. Even if the converter is still working, it may not be as efficient as a newer model.

Major Problem In WFCO RV Converter

The major issue that you can note in the WFCO RV converter is that it may not properly charge the RV battery. This can happen if the converter is not properly sized for the RV’s electrical system, if the converter is malfunctioning, or if the battery is not being used or maintained properly.

Symptoms of a battery issue with the WFCO RV converter may include lights dimming or flickering, appliances not functioning properly, or the battery not holding a charge. To troubleshoot and fix this issue, it is recommended to check the battery’s state of charge, check all the connections, ensure the properly sized converter, and seek professional help if necessary.

How To Check If The RV Converter Is Charging The Battery Or Not?

You can use a voltmeter tool to know whether your WFCO RV converter is doing its job and charging your RV battery. This will give you a clear reading of the battery’s voltage, so you can see if it’s charged up and ready to go or needs a boost.

First, you’ll want to locate your RV battery – this is not the motor’s battery if you have a motorhome. Once you’ve found it, take out your voltmeter and set it to the DC setting. This is important because RV batteries run on DC power.

Next, you’ll want to connect the voltmeter to the battery. The voltmeter will have a red wire and a black wire. Connect the red wire to the battery’s positive terminal and the black wire to the negative terminal.

Now, take a reading from the voltmeter. If the reading says 12 volts or more, that’s great news! Your RV battery is fully charged, and your converter is doing its job. But if the reading is less than 12 volts, it could mean that your battery is not being charged. The ideal voltage reading for an RV battery is between 11 and 13 volts.

By checking your battery voltage with a voltmeter, you can easily troubleshoot any issues with your WFCO RV converter and keep your RV road-ready.

Final Words

A functioning RV converter is crucial for properly operating appliances and lights within the RV. WFCO is a well-known brand of power converters that are often used in RVs and are considered dependable and easy to use.

However, if you suspect that your WFCO RV converter may not be working properly, it is important to take steps to troubleshoot the issue. This guide has provided some common causes and solutions for a malfunctioning WFCO RV converter. We hope you find it useful! 


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