Why Shore Power Fails in Miami RVs
Shore power failure in a Miami RV is one of the most common electrical calls we receive - and one where the symptom description on the phone almost always lets us bring the right parts. The three most common causes are a tripped breaker (no cost to fix, usually the first thing to check), a failed converter or inverter-charger (the box that converts 120V shore power to 12V DC for your coach systems), and a burned transfer switch (the device that routes shore power or generator power to your electrical panel). Miami's combination of high AC demand from the heat, campground power pedestals that can deliver slightly low voltage, and salt air that accelerates contact corrosion in electrical components means shore power issues occur here more frequently than in cooler, drier markets.
Systematic Diagnosis - Finding the Fault
We diagnose shore power problems systematically from the pedestal to the panel. Step 1: verify voltage at the pedestal with a meter - a low-voltage pedestal (below 108V on a 120V circuit) trips surge protectors and EMS units before power reaches the RV. Step 2: verify voltage at the shore power inlet - the cable and inlet connector can have loose contacts that drop voltage. Step 3: check the main breaker and any transfer switch ahead of the distribution panel. Step 4: test the converter output to determine whether 12V loads are being powered from shore input. This sequence takes 20-30 minutes and pinpoints the fault without unnecessary parts replacement. We provide the diagnosis at no additional charge when a repair is booked same-day.
Common Repairs and Costs
The most common repair after diagnosis is converter or inverter-charger replacement. Progressive Dynamics and WFCO are the two dominant converter brands in Miami RVs, and we stock replacement units for the most common amperage ratings. Converter replacement takes 1.5-2 hours at your location and includes wiring verification and output testing. Transfer switch failure is less common but more expensive to repair - $280-420 for the switch and 2-3 hours of labor because the switch is wired into both the shore power and generator circuits. Salt-air-induced contact corrosion at the shore power inlet is addressed with inlet replacement ($180-280) and dielectric grease application to prevent recurrence - the latter being a recommended annual maintenance step for any RV stored within 10 miles of the ocean in Miami-Dade.
2026 RV Shore Power Not Working Pricing - Miami, FL
| Service | Miami Avg. Range | Time On-Site |
|---|---|---|
| Shore power diagnosis (with repair) | Included | 20-30 min |
| Converter replacement (WFCO/Prog. Dynamics) | $180 - $320 | 1.5-2 hrs |
| Transfer switch replacement | $280 - $420 | 2-3 hrs |
| Shore power inlet replacement | $180 - $280 | 1.5-2 hrs |
| EMS / surge protector replacement | $140 - $260 | 45-60 min |
| Main breaker replacement | $120 - $200 | 1-1.5 hrs |
Pricing disclaimer: Figures are local average estimates. Your final price is always determined on-site by your technician after diagnosis. We provide a firm flat-rate quote before any work begins.
Miami-Dade Service Coverage
We serve all 34 cities in Miami-Dade County. Key service areas for rv shore power not working:
We also service campgrounds and RV parks near Everglades National Park, Biscayne National Park, and the Florida Keys gateway at Florida City and Homestead.
About Our Technicians
Marcus Reyes and the RV Repair Miami team hold RVIA (Recreation Vehicle Industry Association) and RVDA (Recreation Vehicle Dealers Association) certifications - the two primary national credentials for RV repair technicians. We verify certifications before every dispatch. 14 years of Miami-Dade service means we know the local climate's specific impact on every RV system and carry the parts most commonly needed for South Florida conditions.
Related Services
See our full RV Electrical Repair page for all options, complete 2026 pricing, and detailed Miami-specific guidance. We also offer pre-purchase and annual inspections across Miami-Dade that assess the complete condition of your RV system before any repair decision.