Kohree 14-inch RV Vent Fan

1. Introduction

Thank you for choosing the Kohree 14-inch RV Vent Fan. This product is designed to provide efficient ventilation and air circulation in your RV, camper, or trailer. Featuring a 10-speed reversible motor, remote control, automatic lid, temperature sensor, and rain sensor, this fan enhances comfort and convenience. Please read this manual thoroughly before installation and operation to ensure proper use and longevity of your fan.

2. Safety Instructions

• Ensure the power supply is disconnected before installation, maintenance, or cleaning.
• This fan operates on a 12V DC power supply. Do not connect to any other voltage.
• Always connect the black wire to the negative terminal and the red wire to the positive terminal. Incorrect wiring can damage the unit.
• Do not open the fan lid in strong winds or while driving at high speeds (e.g., on highways). If the lid begins to sway, close it immediately to prevent damage.
• Keep hands and foreign objects away from the fan blades during operation.
• Installation should be performed by a qualified individual if you are unsure about electrical connections or roof sealing.

3. Package Contents

Verify that all components are present in the package:

• Kohree 14-inch RV Vent Fan Unit
• Wireless Remote Control
• Removable Mosquito-Proof Screen
• Mounting Screws
• Sealing Tape (Extra)
• User Manual (this document)

4. Setup and Installation

The Kohree RV Vent Fan is designed to fit standard 14" x 14" (35.56 cm x 35.56 cm) roof openings. It is compatible with roofs between 1.16 inches and 5.5 inches thick.

4.1. Preparation

1. Choose a suitable location on your RV roof for the 14" x 14" opening.
2. Ensure the area is clear of obstructions and wiring.
3. Disconnect all power to the RV before beginning installation.

4.2. Installation Steps

1. Create the Opening: If not already present, cut a 14" x 14" opening in the RV roof. Ensure clean edges.
2. Apply Sealant: Apply a suitable RV roof sealant around the perimeter of the roof opening.
3. Position the Fan: Place the upper fan assembly into the roof opening from the outside, ensuring it is properly seated and aligned.
4. Secure the Interior Trim: From inside the RV, attach the interior trim piece to the fan assembly using the provided screws. Ensure a tight, secure fit.
5. Wiring: Connect the fan's wiring to your RV's 12V DC power supply. The Red Wire is for Positive (+) and the Black Wire is for Negative (-). Ensure connections are secure and insulated.
6. Final Sealing: Apply additional sealant around the exterior base of the fan on the roof to ensure a watertight seal.
7. Install Screen: Snap the removable mosquito-proof screen into place on the interior side of the fan.

Figure 1: Overview of the Kohree RV Vent Fan components, including the fan unit, remote, and sealing tape.

Figure 2: Product dimensions and fitment details for a 14"x14" RV roof opening, suitable for 1.16"-5.5" thick roofs.

5. Operating Instructions

The Kohree RV Vent Fan can be operated via the included wireless remote control or the manual buttons on the fan unit.

5.1. Basic Operation

• Power On/Off: Press the power button on the remote or fan unit to turn the fan on or off.
• Speed Adjustment: Use the '+' and '-' buttons to adjust the fan speed from 1 (lowest) to 10 (highest).
• Airflow Direction: Press the airflow direction button to switch between intake (bringing fresh air in) and exhaust (removing stale air).

Figure 3: Overview of fan features, including 10-speed adjustment, removable screen, and dual control options (remote and manual).

Figure 4: The wireless remote control allows convenient adjustment of fan settings from a distance.

5.2. Automatic Functions

• Automatic Cooling Function: The fan features a built-in temperature sensor. When the interior temperature exceeds 78.8°F (26°C), the fan will automatically activate to exhaust hot air. It will turn off when the temperature drops below 78.8°F (26°C).


Figure 5: The fan automatically activates to cool the RV interior when temperatures rise above 78.8°F.

• Auto Lid Control: The fan is equipped with a powered-lift UV-proof lid that opens and closes automatically.
• Rain Sensor: A rain sensor automatically detects precipitation and closes the lid to prevent water from entering your RV.


Figure 6: The smart rain sensor automatically closes the lid when rain is detected. To reopen the lid, the rain sensing switch must be turned off.

5.3. Quiet Operation

The fan operates with an ultra-silent motor, producing a maximum noise level of 50dB, comparable to a whisper. In high-power mode, it consumes only 25W.

Figure 7: The fan operates quietly, typically between 20-50 decibels, ensuring a peaceful environment.

6. Maintenance

Regular maintenance ensures optimal performance and extends the lifespan of your RV vent fan.

• Cleaning the Screen: The mosquito-proof screen is removable for easy cleaning. Periodically remove and wash it with mild soap and water. Ensure it is completely dry before reattaching.
• Fan Blade Cleaning: With the power disconnected, carefully wipe the fan blades with a damp cloth to remove dust and debris. Do not use harsh chemicals.
• Exterior Cleaning: Clean the exterior lid and housing with a soft cloth and mild detergent. Avoid abrasive cleaners that could damage the UV-proof coating.
• Sealant Inspection: Periodically inspect the roof sealant around the fan for cracks or deterioration. Reapply sealant as needed to maintain a watertight seal.

7. Troubleshooting

If you encounter issues with your Kohree RV Vent Fan, refer to the following troubleshooting guide:

If the problem persists after attempting these solutions, please contact Kohree customer support for further assistance.

8. Specifications

9. Warranty and Support

For warranty information and customer support, please refer to the documentation provided with your purchase or visit the official Kohree website. You can also contact the seller directly for assistance.

For more products and information, visit the Kohree Store.