RV Electrical Safety Checklist for Indian River County

We've responded to more than 400 RV electrical calls across Indian River County since 2016. The pattern is consistent: most electrical problems start small and get expensive because nobody caught them early. A corroded battery terminal becomes a dead converter. A missing surge protector leads to a fried AC control board. A worn shore power cord causes a melted receptacle and a $700 pedestal repair bill the campground sends to you.

This checklist covers the 6 areas that matter most for RV electrical safety here in Sebastian, Vero Beach, Fellsmere, and the rest of Indian River County. It's based on NEC Article 551 (the National Electrical Code section for recreational vehicles), NFPA 1192, and 10 years of field experience. You can run through most of it yourself with a multimeter and 30 minutes. The rest, you'll want a tech for.

1. Shore Power Safety

Shore power is the most common failure point we see on service calls. The connection between the campground pedestal and your RV carries 30 or 50 amps of current, and if anything in that chain is loose, corroded, or damaged, you're looking at heat buildup that can melt wires or start a fire.

What to check

• Power cord condition. Look for cracks in the insulation, especially near the plug ends where the cord bends. Exposed copper means replacement, not electrical tape.
• Plug prongs. They should be straight, firm, and free of pitting or discoloration. Black marks on the prongs mean arcing has occurred.
• Pedestal condition. Before you plug in, look at the campground pedestal. Melted plastic, burn marks, or a loose receptacle are signs of a bad pedestal. Don't plug into it. Report it to management.
• Temperature check. After 10 minutes of operation with a load (AC running, for example), feel the plug connection. Warm is normal. Hot is a problem. Anything you can't hold your hand on needs attention.
• Adapter usage. If you're using a 50-to-30 amp adapter or a dogbone adapter, inspect it separately. Adapters fail more often than primary cords because they're treated as disposable.

NEC 551.46 requires that the RV power supply cord be permanently attached and that the connection to the campground pedestal meet specific overcurrent and grounding requirements. If your cord is damaged, NEC doesn't allow field splicing. Replace the whole cord.

2. Surge Protection

This one isn't optional in Florida. Indian River County sits in the state's central lightning corridor. Florida averages 1.2 million cloud-to-ground lightning strikes per year, and this region sees roughly 70 to 90 thunderstorm days annually. A single surge from a nearby strike can destroy your converter ($350 to $800 to replace), your AC control board ($200 to $450), or your inverter ($400 to $2,200).

Types of surge protection

• Basic surge protectors ($40 to $90): These catch spikes but don't monitor voltage continuously. Better than nothing, but limited.
• EMS (Electrical Management System) ($150 to $350): These monitor voltage, amperage, frequency, and polarity continuously. If voltage drops below 104V or spikes above 132V, they cut power before damage occurs. They also detect open grounds and reverse polarity at the pedestal. This is what we recommend.
• Hardwired EMS ($250 to $450 installed): Same protection as portable, but mounted inside the RV's electrical panel. Cleaner install, harder to steal.

We've installed or recommended Progressive Industries and Southwire Surge Guard units on hundreds of RVs in this area. Both brands hold up well in Florida's humidity. The portable versions are easier if you move between campgrounds. The hardwired versions make sense if you're parked long-term at places like Vero Beach Kamp, Sebastian Inlet, or Treasure Coast RV Park.

3. Battery Inspection

Florida's heat accelerates battery degradation faster than any other climate factor. A lead-acid battery that lasts 4 to 5 years in Wisconsin might only last 2 to 3 years here in Sebastian. Summer temperatures inside an RV battery compartment can reach 130 to 140 degrees, and that heat breaks down the internal plates.

What to check every 90 days

• Terminal condition. Clean terminals with a wire brush and apply a thin coat of dielectric grease. Corrosion (white or green buildup) increases resistance and reduces charging efficiency.
• Voltage under load. A fully charged 12V lead-acid battery should read 12.6V to 12.8V at rest. Under a 20-amp load, it shouldn't drop below 11.5V. Below that means the battery is failing.
• Water levels (flooded lead-acid only). Check each cell and add distilled water if plates are exposed. Low water levels in Florida's heat lead to sulfation, which is irreversible.
• Cable connections. Tug each cable connection. If it moves, tighten it. Loose connections cause voltage drops and can arc.
• Compartment ventilation. Lead-acid batteries produce hydrogen gas during charging. Make sure the battery compartment vents aren't blocked by debris or insulation.

If you're considering a lithium (LiFePO4) upgrade, the heat tolerance is better (most handle up to 140 degrees for discharge), the weight savings are significant (50% to 70% lighter), and the cycle life is 3,000 to 5,000 cycles vs. 300 to 500 for lead-acid. The upfront cost is higher ($800 to $2,400 per battery), but the per-cycle cost is lower over time. We do full lithium conversions starting at $1,200 for a single battery swap up to $4,500 for a multi-battery system with new wiring.

4. GFCI Testing

GFCI (Ground Fault Circuit Interrupter) outlets are your protection against electrical shock, especially in wet areas like the bathroom, kitchen, and exterior receptacles. NEC 551.41 requires GFCI protection for all 125-volt, 15- and 20-ampere receptacle outlets in those areas.

How to test

1. Plug something into the GFCI outlet (a lamp or phone charger works).
2. Press the TEST button on the outlet. The device should lose power immediately.
3. Press RESET. Power should return.
4. If the GFCI doesn't trip when you press TEST, or if it doesn't reset, replace it. A failed GFCI provides zero shock protection.

In Florida's humidity (average 74% to 80% in Indian River County), GFCI outlets are more prone to nuisance tripping and premature failure. We replace more GFCIs here in 3 years than most northern techs replace in 5. Test yours monthly and at every new hookup. The outlet itself costs $12 to $25; we charge $65 to $95 for the replacement including the part.

5. Wire and Connection Inspection

RV wiring lives in a harsh environment: vibration from road travel, temperature extremes, and Florida's salt air if you're near the coast. Over time, connections loosen, insulation cracks, and corrosion builds up at junction points.

Annual inspection points

• Distribution panel. Open the main breaker panel and look for discoloration, melted plastic, or a burnt smell. These signs indicate a connection has been arcing or overheating.
• Wire runs. Inspect visible wiring in compartments and under the RV. Look for chafing where wires pass through metal frames or over sharp edges. Even small nicks in insulation can lead to short circuits.
• 12V converter connections. The converter takes 120V shore power and converts it to 12V DC. The output connections are a common failure point. Look for loose wires, corroded lugs, or burnt spots.
• Slide-out wiring. Wires that flex during slideout operation wear faster. Check the wiring loom or conduit at both ends of the slide travel for pinching or fraying.
• Ground connections. A loose or corroded ground can cause phantom electrical problems that drive you crazy. Check the main chassis ground and all equipment grounds annually.

NEC 551.30 through 551.33 cover wiring methods for RVs, including requirements for conductor sizing, junction boxes, and wire protection. If you find wiring that doesn't meet code, it's not a cosmetic issue. It's a safety issue. We've found aluminum wiring in some older RVs, DIY wiring with undersized conductors, and connections made with wire nuts instead of proper crimp connectors. All of these are fire risks.

6. Florida Lightning Risk and Your RV

Florida is the lightning capital of the United States. The state sees roughly 1.2 million cloud-to-ground strikes per year, and Indian River County falls squarely in the high-frequency zone. For RV owners, lightning presents 3 specific risks.

Direct strikes

A direct lightning strike on an RV is rare but not unheard of. If you're in an RV park with taller structures nearby, the odds are lower. If you're boondocking in an open field, the odds go up. There's no practical way to lightning-proof an RV. The best defense is to avoid being the tallest object in the area and to stay inside during storms.

Surge through shore power

This is the most common lightning-related damage we see. A strike hits the power grid or the campground's infrastructure, sends a surge through the pedestal, and the connected RV takes the hit. An EMS surge protector (see Section 2) is your primary defense here. We service roughly 15 to 20 lightning-related electrical failures per year, and at least 12 of those could have been prevented with a $200 EMS unit.

Induced surges

Lightning doesn't have to hit anything connected to your RV to cause damage. A nearby strike can induce a voltage spike in any conductor, including your RV's wiring, antenna cable, or solar panel wiring. Proper grounding and an EMS unit reduce this risk, but they can't eliminate it entirely.

During hurricane season (June 1 through November 30), lightning risk peaks between June and September. If you're at an RV park in Sebastian or Vero Beach during a thunderstorm warning, unplug from shore power, retract your antenna, and wait it out. The 10 minutes it takes to reconnect after the storm is a lot cheaper than replacing a converter, an AC unit, and a refrigerator control board.

When to Call a Professional

You can handle GFCI testing, visual inspections, and battery maintenance yourself. But some electrical work requires an RVIA-certified tech or a licensed electrician. Call us if you notice:

• Flickering lights that aren't caused by a known load cycling on and off
• Breakers that trip repeatedly
• A burning smell from the electrical panel, converter, or any outlet
• Voltage readings that don't match what they should be
• Any melted plastic, discolored wiring, or visible arcing damage
• Your shore power plug or receptacle getting hot

Our electrical safety inspections start at $95 and cover all outlets, breakers, the converter, battery bank, shore power connection, and grounding. We follow NEC 551 on every job, and we'll give you a written report of findings. If we find issues, we'll quote the repair separately so you know exactly what you're looking at before any work starts.