Introduction
This manual provides essential information for the safe and effective use of your Fimco 7771938 12 Volt On/Off Wireless Remote Control. Please read this manual thoroughly before installation and operation to ensure proper functionality and to prevent damage to the unit or connected devices.
Product Overview
The Fimco 7771938 Wireless Remote Control system consists of a main control module and a compact keychain remote fob, designed to provide convenient wireless control for various 12-volt accessories.

Image: Fimco 7771938 12 Volt On/Off Wireless Remote Control unit and remote fob. The main control module is a black rectangular box with Fimco branding and wiring connections. The remote fob is a smaller black device with red 'ON' and 'OFF' buttons and a keychain clip.
The control module features quick-connect terminals for both power input and power output, simplifying the connection process. The remote fob is equipped with clearly marked 'ON' and 'OFF' buttons and a collapsible antenna to optimize signal range.
Safety Information
Adhering to these safety guidelines is crucial for safe operation and to prevent damage or injury:
- Power Disconnection: Always disconnect the power source from the battery or electrical system before performing any installation, maintenance, or troubleshooting.
- Current Limit: Do not exceed the maximum current rating of 20 amps for the connected 12-volt accessory. Overloading can cause damage to the unit and pose a fire hazard.
- Proper Polarity: Ensure all electrical connections are made with correct polarity (positive to positive, negative to negative) to prevent damage to the control module and the connected device.
- Environmental Protection: This product is designed for use in dry conditions. It is not waterproof. Protect the control unit and remote fob from moisture, rain, and excessive humidity.
- Secure Mounting: Mount the control module securely to prevent movement or accidental disconnection during operation.
Setup
The Fimco 7771938 Wireless Remote Control is designed for straightforward installation between a 12-volt power source (such as a battery) and a 12-volt accessory that draws up to 20 amps.
Installation Steps:
- Power Disconnection: Before starting, ensure the 12-volt power source is completely disconnected to avoid electrical shock or short circuits.
- Connect Power Input: Locate the 'Power In' terminals on the control module. Connect the positive (+) lead (typically red) from your 12-volt power source to the red wire of the 'Power In' terminal. Connect the negative (-) lead (typically black) from your power source to the black wire of the 'Power In' terminal.
- Connect Power Output: Locate the 'Power Out' terminals on the control module. Connect the positive (+) lead of your 12-volt accessory to the red wire of the 'Power Out' terminal. Connect the negative (-) lead of your 12-volt accessory to the black wire of the 'Power Out' terminal.
- Secure the Module: Use the provided double-sided adhesive tape or other suitable mounting hardware to secure the control module in a dry, protected location. Ensure it is easily accessible for future maintenance.
- Reconnect Power: Once all connections are securely made and verified for correct polarity, reconnect the 12-volt power source.
- Test Operation: Press the 'ON' button on the keychain remote to activate the connected accessory. Press the 'OFF' button to deactivate it. The remote features a collapsible antenna; extend it fully for optimal range.
Operating Instructions
The Fimco 7771938 Wireless Remote Control operates with a simple two-button keychain remote for convenient on/off control of your 12-volt accessory.
- Turning ON: To activate the connected 12-volt accessory, simply press the button labeled 'ON' on the remote fob.
- Turning OFF: To deactivate the connected 12-volt accessory, press the button labeled 'OFF' on the remote fob.
The remote has an operational range of up to 250 feet, allowing for flexible and convenient control from a distance. For best performance, ensure a clear line of sight between the remote and the control module, and fully extend the remote's antenna.
Maintenance
Regular maintenance helps ensure the longevity and reliable performance of your Fimco Wireless Remote Control:
- Battery Replacement: The keychain remote uses a nonstandard battery (included). When the remote's range decreases or it stops responding, it may be time to replace the battery. Refer to the remote's casing for specific instructions on how to access and replace the battery.
- Cleaning: Keep both the control module and the remote fob clean and free from dirt, dust, and especially moisture. Wipe surfaces with a dry, soft cloth. Avoid using harsh chemicals or abrasive cleaners.
- Connection Check: Periodically inspect all electrical connections to ensure they remain secure and free from corrosion. Loose or corroded connections can lead to intermittent operation or complete failure.
- Storage: When not in use for extended periods, store the unit in a dry, cool place, away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your Fimco Wireless Remote Control, refer to the following table for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Connected device does not turn ON/OFF. | No power to the control module. | Check battery connections and ensure the 12-volt power source is active. Verify fuses if applicable. |
| Connected device does not turn ON/OFF. | Remote battery is low or dead. | Replace the battery in the keychain remote fob. |
| Connected device does not turn ON/OFF. | Incorrect wiring or loose connections. | Verify all connections match the installation instructions, paying close attention to correct polarity. Ensure all quick connectors are fully seated. |
| Reduced remote range. | Obstructions, interference, or unextended antenna. | Ensure a clear line of sight between the remote and the module. Extend the remote's collapsible antenna fully. Avoid operating near strong electromagnetic interference. |
| Unit not responding after exposure to moisture. | Water damage. | This product is not waterproof. If water damage is suspected, discontinue use immediately and allow the unit to dry completely. Replacement may be necessary. |
Specifications
Key technical specifications for the Fimco 7771938 Wireless Remote Control:
- Model: Fimco 7771938
- Voltage: 12 Volts DC
- Max Current: Up to 20 Amps
- Wireless Range: Up to 250 Feet (approximate, line of sight)
- Control Module Dimensions: Approximately 7.1 x 4.4 x 1.6 inches
- Item Weight: Approximately 4.2 ounces
- Remote Battery: 1 Nonstandard Battery (included)
- Special Features: Universal compatibility with 12-volt accessories, convenient keychain clip, collapsible antenna for extended range, quick-connect terminals.
Warranty and Support
For detailed warranty information, product registration, or technical support regarding your Fimco 7771938 Wireless Remote Control, please visit the official Fimco website or contact Fimco customer service directly. It is recommended to retain your purchase receipt as proof of purchase for any warranty claims.





