Introduction
This manual provides comprehensive instructions for the Yomile 50 Amp RV Surge Protector, designed to safeguard your RV's electrical system from power fluctuations and wiring faults. It features 12800 joules of surge protection and an integrated circuit analyzer to detect common wiring issues at the power pedestal. Please read this manual thoroughly before use to ensure proper operation, maximize the lifespan of your device, and maintain safety.

Image: The Yomile 50 Amp RV Surge Protector, featuring a circuit analyzer with LED indicators for easy operation and monitoring of power conditions.
Safety Information
Always prioritize safety when handling electrical equipment. This device is engineered with several key safety features:
- IP67 Waterproof Design: Provides robust protection against water ingress, dust, and sandstorms, ensuring reliable performance in various outdoor conditions.
- V-1 Fireproof Materials: Constructed from materials that meet V-1 fire resistance standards, enhancing safety.
- FCC Tested: Complies with Federal Communications Commission standards for electromagnetic compatibility.
- 12800 Joules Surge Protection: Offers significant protection against damaging electrical surges.
WARNING: Do not attempt to open, modify, or repair the device. Refer all servicing to qualified personnel. Ensure the device is completely disconnected from power before handling or cleaning.

Image: The Yomile RV Surge Protector is built for resilience, featuring IP67 waterproofing, dust-proof construction, comprehensive electricity protection, and flame-retardant materials to ensure safety and durability in challenging environments.
Package Contents
- Yomile 50 Amp RV Surge Protector (Model DF-1)
- User Manual (this document)
Product Features
The Yomile RV Surge Protector incorporates advanced features for reliable RV power protection:
- 50 Amp Service: Specifically designed for 50A RV electrical systems, supporting 125V/250V.
- 12800 Joules Surge Protection: Provides robust defense against sudden voltage spikes.
- Integrated Circuit Analyzer: Diagnoses common wiring faults at the power pedestal before connecting your RV.
- LED Power Indicators: Clear and easy-to-read LEDs display power status and fault conditions.
- IP67 Waterproof: Ensures durability and functionality in various outdoor weather conditions.
- Anti-Theft Ring: Allows for securing the device to the power pedestal for added security.
- Power Grip Handles: Ergonomically designed handles facilitate easy and secure connection and disconnection.
- Certified Plug and Retardant Copper Wire: Constructed with high-quality components for safety and longevity.

Image: A detailed view of the Yomile RV Surge Protector, illustrating its key features including the 50 Amp rating, 12800 joules of surge protection, 125V/250V compatibility, an upgraded waterproof cover, an anti-theft ring, and power grip handles.

Image: This image highlights the robust construction of the Yomile RV Surge Protector, featuring a certified plug, its 50 Amp and 12800 Joule rating, and the use of retardant copper wire for enhanced safety and performance.
Understanding RV Amperage (50A vs 30A)
It is crucial to use the correct amperage surge protector for your RV. This Yomile surge protector is designed for 50 Amp RVs. Below is a visual guide to help distinguish between 30 Amp and 50 Amp connections:

Image: A comparative diagram illustrating the physical differences between 30 Amp (3-prong) and 50 Amp (4-prong) RV plugs and their corresponding receptacles, helping users identify the correct connection type for their RV.
- 30 Amp: Typically has 3 prongs on the plug and 3 holes in the receptacle. Provides 120V power.
- 50 Amp: Typically has 4 prongs on the plug and 4 holes in the receptacle. Provides 125V/250V power, allowing for more appliances to run simultaneously.
Ensure your RV requires a 50 Amp connection before using this surge protector. Using an incorrect amperage device can lead to electrical issues.
Setup Instructions
Follow these steps to properly set up your Yomile RV Surge Protector:
- Inspect the Power Pedestal: Before connecting, visually inspect the RV park's power pedestal for any obvious damage, loose wires, or signs of wear.
- Connect the Surge Protector: Firmly plug the Yomile 50 Amp RV Surge Protector directly into the 50 Amp receptacle on the power pedestal. Ensure the connection is secure.
- Observe Circuit Analyzer LEDs: Once connected, the surge protector's LED indicators will illuminate. These LEDs display the power status and any detected wiring faults. Refer to the "Operating Instructions" and "Troubleshooting" sections for detailed interpretation.
- Connect Your RV: After verifying a safe power connection (indicated by all green lights on the surge protector), plug your RV's 50 Amp power cord into the receptacle on the Yomile surge protector.
- Secure the Device (Optional): If desired, utilize the integrated anti-theft ring to secure the surge protector to the power pedestal using a padlock (not included).

Image: The Yomile RV Surge Protector shown connected to an RV park's electrical pedestal, illustrating its straightforward plug-and-play setup for immediate protection and circuit analysis.
Operating Instructions
The Yomile RV Surge Protector's circuit analyzer provides immediate feedback on the power supply through its LED indicators. Observe the LED pattern upon connection to understand the power status before connecting your RV.
LED Indicator Diagnostic Table

Image: A close-up view of the Yomile RV Surge Protector's LED panel, featuring a diagnostic table that explains what each combination of illuminated green and red lights signifies, from correct wiring to various fault conditions.
| Indicator Pattern | Status | Description |
|---|---|---|
| ● ● ● (L1) ● ● ● (L2) | Power On | Correct wiring detected. It is safe to connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | Open Neutral | The neutral wire is disconnected. This is a hazardous condition. Do not connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | Open Ground | The ground wire is disconnected. This is a hazardous condition. Do not connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | Missing L1 125V | One of the 125V lines (Line 1) is not receiving power. Do not connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | Missing L2 125V | The other 125V line (Line 2) is not receiving power. Do not connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | L1 & Neutral Reversed | Line 1 and Neutral wires are swapped. This is a hazardous condition. Do not connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | L2 & Neutral Reversed | Line 2 and Neutral wires are swapped. This is a hazardous condition. Do not connect your RV. |
| ● ● ● (L1) ● ● ● (L2) | No Power | No power is detected from the pedestal. |
Always ensure the surge protector indicates "Power On" (all green lights) before connecting your RV. Connecting to a faulty power source can cause severe damage to your RV's electrical system and appliances.
Maintenance
The Yomile RV Surge Protector is designed for durability and requires minimal maintenance to ensure long-term performance.
- Cleaning: Periodically wipe the exterior of the device with a soft, damp cloth to remove dirt, dust, and debris. Ensure the device is completely disconnected from all power sources before cleaning. Do not use harsh chemicals, solvents, or abrasive cleaners, as these can damage the housing or internal components.
- Storage: When not in use, store the surge protector in a clean, dry place, away from direct sunlight, extreme temperatures, and corrosive environments.
- Inspection: Before each use, visually inspect the device, its plug, and receptacle for any signs of damage, such as cracks, frayed wires, bent prongs, discoloration, or corrosion. If any damage is observed, do not use the device and contact customer support.
Troubleshooting
If the circuit analyzer indicates a fault, refer to the "LED Indicator Diagnostic Table" in the Operating Instructions section. Here are common issues and their recommended resolutions:
- Issue: No Power (All LEDs Off)
- Resolution 1: Check the circuit breaker at the power pedestal. Ensure it is in the "ON" position.
- Resolution 2: Verify that the power pedestal itself is active and supplying power.
- Resolution 3: Ensure the surge protector is fully and securely plugged into the pedestal.
- Issue: Open Ground, Open Neutral, or Reversed Polarity Indicated
- Resolution: These conditions indicate a serious wiring fault at the power pedestal. Do not connect your RV. Contact campground management or a qualified electrician immediately to resolve the issue. If possible, move to a different power pedestal that shows a "Power On" status.
- Issue: Missing L1 125V or Missing L2 125V Indicated
- Resolution: This indicates a partial power failure at the pedestal. Do not connect your RV. Check the pedestal's circuit breakers for tripped conditions. Report the issue to campground management.
IMPORTANT: If the surge protector indicates any fault other than "Power On" (all green lights), it is strongly advised not to connect your RV to that power source to prevent potential damage to your RV's electrical system and appliances.
Specifications
| Feature | Detail |
|---|---|
| Brand | Yomile |
| Model | DF-1 |
| Amperage | 50 Amp |
| Surge Protection | 12800 Joules |
| Voltage Compatibility | 125V / 250V |
| Waterproof Rating | IP67 |
| Material | V-1 Fireproof Materials |
| Item Weight | 1.2 kg |
| Parcel Dimensions | 40.64 x 14.99 x 11.68 cm |
| ASIN | B0D5D71PZW |
Warranty and Support
Specific warranty information and customer support contact details were not provided in the product data. For the most accurate and up-to-date warranty policy, technical support, or service inquiries, please refer to the product packaging, any included warranty cards, or visit the official Yomile website.