RV electrical systems combine two entirely different worlds under one roof: a 12-volt DC system running lights, water pumps, and slide motors off the battery, and a 120-volt AC system running outlets and appliances off shore power or the generator. A problem in one can look like it's coming from the other, which is why electrical diagnosis is one of the most misdiagnosed areas of RV repair. It's also Tristan's strongest area, backed by Winnebago 12V & 120V electrical training and a Firefly Integrations multiplex touchscreen certification.
Modern coaches increasingly run lighting, slides, tank monitoring, and climate control through a central multiplex touchscreen rather than individual switches, and when that system glitches, freezes, or loses communication with a component, it takes specific training to know where to start looking. Tristan's Mobile RV Repair brings that training to your driveway, storage lot, or campsite.
Signs you need electrical repair
- Batteries won't hold a charge or drain overnight
- Lights dim, flicker, or behave erratically
- Outlets or appliances don't work on shore power or generator
- Firefly or other multiplex touchscreen freezes, glitches, or won't load
- Breakers trip repeatedly or converter/inverter won't function
- Slide-outs, awnings, or jacks stop responding along with other electrical symptoms
- Burning smell, corroded connections, or visibly damaged wiring
What Tristan does
12V DC system diagnosis
Tristan traces battery, converter, and DC wiring issues with a meter rather than guessing, checking voltage drop, fuse panels, and ground connections to find why lights, pumps, or slide motors aren't getting the power they need.
120V AC system diagnosis
Shore power and generator-fed circuits are tested for proper voltage, grounding, and breaker function, since a loose connection or failed transfer switch can take out multiple outlets and appliances at once.
Firefly and multiplex touchscreen troubleshooting
On coaches with Firefly Integrations or similar multiplex control systems, Tristan diagnoses whether a problem is in the touchscreen module itself, the wiring network connecting it to components, or the components being controlled, drawing on his Firefly certification to work through the system methodically.
Component repair and replacement
Converters, inverters, batteries, breakers, and damaged wiring runs are repaired or replaced as needed, with connections cleaned, tightened, and protected against the corrosion that Georgia's humidity tends to accelerate.
Why mobile beats hauling it to a dealer
Electrical problems are easiest to diagnose in the environment where they actually happen, whether that's a battery that drains overnight in your driveway or a touchscreen that glitches only after the rig has been running for a while at a campsite near Stone Mountain. Tristan brings his meters and tools to that environment instead of trying to recreate it in a shop bay.
It also means less downtime for you. Electrical gremlins can take time to track down properly, and having that work happen at your home or storage lot means you're not paying for towing or losing use of the RV while a shop works through it on their schedule.
Relevant training
- Winnebago 12V & 120V electrical training
- Firefly Integrations multiplex touchscreen certification
- Certificate in all-around RV repair
Questions we get asked
- How do you know if a problem is 12V or 120V?
- Tristan tests each system independently with a meter, since symptoms can overlap. A dead outlet might be a 120V issue, or it might be a downstream 12V component like a transfer switch causing the failure.
- My Firefly touchscreen is frozen. Is that a big repair?
- Not always. Sometimes it's a module needing a reset or firmware issue, and sometimes it's a wiring or power problem feeding the screen. Tristan's Firefly certification means he can work through those possibilities in the right order instead of replacing parts by trial and error.
- Why do my batteries keep draining even when the RV is off?
- That usually points to a parasitic draw somewhere in the 12V system, and Tristan can trace it circuit by circuit to find what's pulling power when nothing should be running.
- Do you work on inverters and converters?
- Yes, Tristan diagnoses and repairs or replaces both, and checks the surrounding wiring and connections since a failing converter or inverter often has a related cause elsewhere in the system.
Areas we serve for this service
Cities & areas
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