Why is my RV not receiving any power when plugged into shore power?

The most common causes are a tripped breaker at the campground pedestal, a faulty or loose power cord connection, or a tripped breaker on your RV's main distribution panel. Start by checking the campground breaker, ensuring your cord is fully seated in the outlet, and inspecting your RV's main breaker. Also verify the pedestal outlet is actually providing power by testing it with a multimeter or a simple circuit tester.

Could my RV power cord or adapter be causing the shore power issue?

Absolutely. Over time, power cords can develop internal breaks, corroded prongs, or melted connections from heat damage. Inspect both ends of the cord for burn marks, discoloration, bent or pitted prongs, and loose connections. If you're using a 50-to-30 amp adapter or dogbone adapter, that component can also fail and should be tested or temporarily replaced to isolate the problem.

Why does my shore power breaker keep tripping when I plug in my RV?

A repeatedly tripping breaker usually indicates an overloaded circuit, a short circuit in your RV's electrical system, or a faulty breaker at the pedestal. Try turning off all appliances and breakers inside the RV before plugging in, then switch them on one at a time to identify the offending circuit. If the breaker trips immediately with everything off, you likely have a short in your wiring or a defective power cord that needs professional diagnosis.

What role does the RV's transfer switch or EMS play in shore power problems?

The automatic transfer switch routes power between shore and generator sources, and if it fails or gets stuck, it can prevent shore power from reaching your RV's electrical panel. Similarly, an Energy Management System (EMS) or surge protector may lock out incoming power if it detects incorrect voltage, reversed polarity, or an open ground. Check the indicator lights on your EMS or surge protector for error codes, and try bypassing it temporarily to see if power is restored.

When should I call a professional electrician or RV technician for shore power issues?

If you've verified the campground pedestal is working, your power cord and connections are in good condition, your breakers are not tripped, and you still have no power, it's time to call a professional. You should also seek expert help if you notice burning smells, melted wires, or signs of arcing anywhere in the system. Electrical problems can quickly become fire hazards, so never attempt to repair internal wiring, transfer switches, or breaker panels unless you are qualified to do so.

RV Shore Power Not Working — RV Diagnostic Guide

Probable Causes

Tripped GFCI outlet or circuit breaker (most common — either at the pedestal or inside the RV)
Faulty or damaged shore power cord (burned prongs, melted connections, internal break)
Campground pedestal breaker tripped or pedestal outlet is dead
Failed power converter or transfer switch
Loose or corroded connections at the RV inlet plug (where the cord enters the coach)
Tripped main breaker on the RV's distribution panel
Defective surge protector or EMS (Energy Management System) blocking power

Urgency & Safety

High priority. Working with 120V/240V shore power can cause electrocution, arc flash, or fire. If you see melted plastic, smell burning, notice scorch marks on plugs or outlets, or feel tingling when touching the RV's exterior, disconnect immediately and call a technician or electrician. Never work on live circuits. A "hot skin" condition (voltage on the RV frame) is life-threatening.

DIY Difficulty

Beginner to Intermediate for basic troubleshooting (checking breakers, swapping cords, testing outlets). Advanced/Professional for anything involving the transfer switch, converter, or opening the distribution panel.

Typical Repair Cost

| Repair | Estimated Cost | |---|---| | Breaker reset / GFCI reset | Free | | Shore power cord replacement (30A) | $50–$150 | | Shore power cord replacement (50A) | $100–$300 | | RV inlet plug replacement | $30–$80 + labor | | Transfer switch replacement | $200–$600 + labor | | Converter replacement | $150–$500 + labor | | Electrician / mobile tech service call | $100–$200/hr |

Parts You May Need

Replacement shore power cord (30A or 50A, depending on your RV)
Non-contact voltage tester (essential safety tool)
Multimeter
Replacement GFCI outlet
RV power inlet receptacle
Replacement circuit breakers (matching brand and amperage)
Surge protector / EMS unit (if current one is faulty)

Step-by-Step Diagnosis

Start at the pedestal. Use a non-contact voltage tester or plug in a simple device (like a phone charger with a light) to confirm the campground outlet is actually live. Try resetting the pedestal breaker — flip it fully OFF, then back ON.

Inspect your shore power cord. Unplug it first. Look at both ends — male prongs and female connector. Check for melted plastic, bent or blackened prongs, burn marks, or a cracked housing. Flex the cord along its length and feel for internal breaks. Replace the cord if you find any damage.

Check your surge protector or EMS. If you use an inline surge protector, bypass it temporarily by plugging the cord directly into the pedestal. A faulted EMS will block all power and usually displays an error code.

Inspect the RV power inlet. Open the exterior compartment where the cord connects to the coach. Look for melted terminals, loose wiring, or corrosion. Tighten connections if you're comfortable doing so (with power disconnected).

Check the RV's main breaker and distribution panel. Open the breaker panel inside the RV. Reset the main breaker (full OFF, then ON). Check individual breakers for tripped positions (they sit in a middle position when tripped).

Reset all GFCI outlets. Press the RESET button on every GFCI outlet in the RV — bathroom, kitchen, exterior. A tripped GFCI can kill power to downstream outlets and circuits.

Test with a multimeter. Set it to AC voltage. Test at the pedestal (should read ~120V for 30A or ~240V across legs for 50A), then at the RV inlet terminals, then at the distribution panel lugs. Wherever voltage disappears, you've found your failure point.

Check the transfer switch. If you have an automatic transfer switch (common in RVs with generators), it may be stuck or failed. You'll hear it click when shore power is applied. No click likely means a bad switch or no power reaching it.

When to Call a Technician

You detect voltage on the RV frame or feel tingling when touching metal surfaces
Scorch marks, melting, or burning smell anywhere in the electrical system
Voltage is present at the pedestal but absent at the distribution panel and you can't find the break
The transfer switch is suspected — replacement involves high-amperage wiring
You're not comfortable using a multimeter on live AC circuits
Multiple systems are affected or breakers trip repeatedly after reset

Electrical faults in RVs cause hundreds of fires annually. When in doubt, hire a certified RV technician or licensed electrician — the cost is always less than the alternative.

RV Shore Power Not Working

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