From battery drain gremlins and failed power converters to shore power shorts and blown breaker panels, Camper John's safely diagnoses and repairs complex RV electrical systems on-site.
An RV is essentially a house on wheels that experiences constant earthquake-like conditions while traveling down the highway. Because of this, the electrical systems inside an RV face a level of stress that a traditional home simply never encounters. Vibrations loosen connections, temperature swings cause wire sheathing to degrade, and regular plugging and unplugging at different campgrounds exposes your rig to power surges and improper voltages.
What makes RV electrical troubleshooting uniquely difficult is the fact that your rig actually runs two completely separate electrical systems that rely on one another. The 110-volt alternating current (AC) system powers your air conditioners, microwave, standard wall outlets, and residential appliances, drawing energy from a shore power pedestal or onboard generator. Meanwhile, the 12-volt direct current (DC) system powers your lights, water pump, slide-out motors, fans, and furnace controls, running directly off your deep-cycle battery bank.
These two systems communicate through a device called a power converter, which takes 110V AC shore power and converts it into 12V DC power to run your low-voltage accessories and charge your batteries. When a failure occurs, it's not always obvious whether the culprit is a dead battery, a blown 12V fuse, a tripped 110V breaker, a faulty converter, or a hidden loose wire located somewhere inside a wall. When an electrical problem hits, it rarely happens at a convenient time. You might be settling in for the first night of a long-awaited vacation when the air conditioning refuses to turn on, or you might wake up to discover the refrigerator has lost power and your food is starting to spoil. Trying to troubleshoot these issues on your own can be intimidating, frustrating, and potentially dangerous if you aren't familiar with live circuits. That's why having a professional, mobile RV technician you can rely on is crucial.
Furthermore, electrical issues often masquerade as appliance failures. A rooftop air conditioner that fails to start might just have a weak run capacitor, or the 12-volt thermostat wire may have lost continuity, or the shore power pedestal might be dropping voltage below safe operating limits. Simply replacing the air conditioner wouldn't solve the problem. Our rigorous diagnostic approach ensures that we find the root cause, preventing you from spending money on unneeded parts and avoiding repeat failures down the road. Camper John's is dedicated to honest, efficient service.
Camper John's eliminates the guesswork. We bring advanced diagnostic tools, digital multimeters, and a deep understanding of RV electrical architecture directly to you. Instead of randomly replacing parts and hoping the problem goes away, we methodically test the voltage, amperage, and continuity across your circuits to find the exact point of failure. Whether you are parked in a driveway, a local campground, or a storage lot, we come to your location and perform professional, safe electrical repairs so you can get back to enjoying your trip.
Electrical problems rarely fix themselves. Ignoring them can lead to destroyed batteries, ruined appliances, or serious fire hazards. Watch for these common indicators.
We don't guess or swap parts blindly. Every repair follows a strict, step-by-step diagnostic procedure to ensure safety and accuracy.
We always begin by verifying the quality of the power entering your RV. We test the campground pedestal, shore cord, or generator for proper voltage, polarity, and grounding.
Using professional multimeters and load testers, we systematically isolate the malfunctioning circuit. We test the batteries, converter, inverter, breakers, and individual appliance control boards.
Once the exact fault is identified, we replace the defective component or repair the wiring using marine-grade connectors, properly sized wire, and secure fittings to prevent future issues.
After the repair is completed, we power up the system, apply a heavy electrical load, and verify that the voltage remains stable, the amp draw is normal, and everything functions safely.
Electricity is not something to take chances with. We bring decades of real-world experience to ensure your rig is safe and fully functional.
Towing an RV with electrical issues is stressful. We bring our full suite of diagnostic tools right to your location, saving you time and hassle.
We understand the interplay between 12-volt battery systems, 110-volt shore power, generators, automatic transfer switches, and inverters.
We've tracked down hidden shorts and complex electrical gremlins in virtually every brand and class of RV on the road.
We don't replace expensive parts hoping it fixes the problem. We test the circuit, prove the failure, and repair only what is actually broken.
RV fires are often caused by poor electrical repairs. We use proper gauge wiring, heat shrink connectors, and proper crimping tools for a permanent, safe fix.
A loss of power means spoiled food, no heat, or no air conditioning. We prioritize critical electrical failures to get you back up and running fast.
Based out of McMinnville, we proudly travel across 35+ Tennessee counties, reaching campgrounds, homes, and storage lots alike.
We'll show you exactly what failed and explain the repair in plain terms, helping you understand your RV's systems better along the way.
Can't find what you're looking for? Give us a call — happy to talk it through.
A battery that won't hold a charge could be due to a failing converter that isn't pushing voltage to the battery, a parasitic draw from an accessory, or simply an old battery that has reached the end of its lifespan. We test the battery under load and measure the converter's output to find exactly where the failure is before replacing anything.
RV lights run on the 12-volt DC system, while standard wall outlets require 110-volt AC power (shore power or a generator). If lights work but outlets don't, the issue is typically a tripped GFCI outlet, a thrown main breaker at the pedestal or panel, or an issue with your shore power cord or inverter.
Yes, testing the converter is one of the most common electrical diagnostics we do. If your lights dim, your fan motors sound sluggish, or your battery won't charge while plugged into shore power, the converter is a prime suspect. We carry common replacement converters and can swap out a failed unit on-site.
Tripping the pedestal breaker usually means you are drawing more amperage than the circuit can handle — like running two AC units, a microwave, and a water heater simultaneously on a 30-amp service. It can also indicate a short circuit in your shore cord, transfer switch, or main RV panel. We can trace the amp draw and find the culprit.
Absolutely. 12-volt issues can be incredibly frustrating — a water pump that won't kick on, slide-outs that refuse to move, or blown fuses. We use digital multimeters to trace the voltage drop, locate the short or open circuit, and repair the wiring securely, restoring full function without the guesswork.
A burning plastic smell is a critical warning sign of extreme electrical resistance, often caused by a loose connection or overloaded circuit. Unplug your rig immediately and do not turn the power back on until the system has been fully inspected. This often happens at the shore power receptacle, the transfer switch, or inside the main breaker panel.
Yes, we can repair, replace, or upgrade inverters. If you want to run 110-volt appliances off your battery bank while boondocking, we can install a properly sized inverter system and wire it safely into your existing electrical setup.
This is often an issue with the automatic transfer switch failing to engage, or a tripped breaker located directly on the generator itself. We can test the voltage coming directly off the generator and follow the path through the transfer switch to determine why power isn't reaching your main panel.
Yes, we troubleshoot and repair existing RV solar setups. Whether your panels aren't generating enough voltage, your charge controller has failed, or the wiring to the battery bank has corroded, we can diagnose the issue and get your off-grid power system charging efficiently again.
Electrical problems vary widely, so we start with a standard diagnostic service call. We use that time to trace the circuit and find the exact point of failure. Once we know exactly what's wrong, we'll give you a clear, upfront cost for the repair before we proceed.
Not at all. Camper John's is fully mobile. We bring the meters, tools, wire, connectors, and common replacement parts directly to your campsite, driveway, or storage facility. We handle 12V and 110V electrical diagnostics and repairs entirely on-site.
Electrical issues don't resolve themselves and ignoring them can lead to costly damage or safety hazards. Camper John's brings expert, safe, and reliable electrical troubleshooting directly to your campsite or driveway anywhere in Tennessee. Get your power restored today.
