1. Introduction
The FoodSaver FM3920 2-in-1 Vacuum Sealer System is designed to preserve food freshness by removing air from specially designed bags and containers. This system helps prevent freezer burn and extends the shelf life of various food items, allowing for bulk purchasing and meal preparation.

Image 1.1: The FoodSaver FM3920 2-in-1 Vacuum Sealer System, a black appliance with control buttons, shown on a kitchen counter with fresh ingredients.
2. Important Safeguards
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and/or injury to persons, including the following:
- Read all instructions before using this product.
- Do not operate the appliance with a damaged cord or plug.
- Do not immerse the appliance in water or other liquid.
- Close supervision is necessary when any appliance is used by or near children.
- Unplug from outlet when not in use and before cleaning.
- Use appliance only for its intended household use.
- This appliance is ETL or UL certified by Nationally Recognized Test Laboratories (NRTLs) for compliance with applicable product safety test standards.
3. Product Features and Components
- 2-in-1 Sealing: Combines a standard vacuum sealer with a retractable handheld sealer.
- Integrated Roll Storage & Cutter: Allows for easy creation of custom-sized bags.
- Quick Marinate Mode: Infuses flavor into food in minutes.
- Wet and Dry Modes: Ensures optimal sealing for different food types.
- Removable Drip Tray: Catches overflow liquid and is dishwasher safe.
- Included Components: (1) 11"x10' Vacuum Seal Roll; (3) Quart Vacuum Seal Bags; (2) Gallon Vacuum Seal Bags; (3) Quart Vacuum Zipper Bags; (2) Gallon Vacuum Zipper Bags.

Image 3.1: Close-up of the integrated roll storage and cutter on the FoodSaver FM3920.
4. Setup and First Use
- Unpack the System: Remove all packaging materials and ensure all components are present.
- Positioning: Place the vacuum sealer on a flat, stable, and dry surface.
- Power Connection: Plug the power cord into a grounded electrical outlet.
- Install Vacuum Seal Roll: Open the lid and place the 11"x10' vacuum seal roll into the integrated storage compartment. Pull out enough material to create a bag.
- Create a Bag: Use the integrated cutter to cut the roll to your desired length. Seal one end of the cut material to form a bag (refer to 'Operating Instructions' for sealing steps).
5. Operating Instructions
5.1. Vacuum Sealing with Bags
- Place the food item into a FoodSaver vacuum seal bag, leaving at least 3 inches of space between the food and the top of the bag.
- Open the vacuum sealer lid. Place the open end of the bag into the vacuum channel.
- Close the lid firmly until it latches.
- Select the appropriate mode: Dry for solid foods or Moist for foods with some liquid.
- Press the Vac/Seal button. The system will automatically remove air and then seal the bag. LED indicators will guide you through the process.
- Once the process is complete, the vacuum sealer will release the bag.

Image 5.1: FoodSaver FM3920 vacuum sealing food in a bag.
5.2. Using the Handheld Accessory
The integrated handheld accessory is ideal for FoodSaver zipper bags, Fresh containers, and the Quick Marinator.
- Ensure the handheld accessory is properly seated in its port.
- Place the handheld accessory over the vacuum valve on the zipper bag or container lid.
- Press the Accessory button. The system will remove air.
- The vacuum process will stop automatically when the optimal vacuum level is reached.

Image 5.2: A hand using the integrated handheld accessory to vacuum seal a FoodSaver zipper bag containing cheese slices.

Image 5.3: A hand using the integrated handheld accessory to vacuum seal a FoodSaver Fresh container with cut melon.
5.3. Quick Marinate Mode
To use the Quick Marinate Mode, connect the handheld accessory to the Quick Marinator (sold separately) and press the Marinate button. This mode rapidly infuses marinades into food.
Video 5.4: An official manufacturer video demonstrating the features and benefits of the FoodSaver FM3920 vacuum sealer, including its 2-in-1 functionality and food preservation capabilities.
6. Maintenance and Cleaning
- Cleaning the Drip Tray: The patented removable drip tray catches any overflow liquid. It is dishwasher safe for easy cleaning.
- Cleaning the Appliance: Wipe the exterior of the appliance with a damp cloth. Do not immerse the appliance in water.
- Storage: The compact design allows for convenient storage when not in use.
7. Troubleshooting
If your FoodSaver FM3920 is not operating as expected, please refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on | Not plugged in; power outlet malfunction | Ensure the power cord is securely plugged into a working electrical outlet. |
| Bag does not vacuum properly | Bag not positioned correctly; bag has a hole; moisture in vacuum channel | Ensure the open end of the bag is fully inside the vacuum channel. Check the bag for punctures. Clean any moisture from the drip tray and vacuum channel. |
| Bag does not seal | Seal bar not hot enough; bag material issue | Allow the appliance to cool down for a few seconds between seals. Ensure you are using official FoodSaver bags. |
| Handheld accessory not working | Accessory not properly attached; valve on bag/container blocked | Ensure the handheld accessory is firmly pressed onto the vacuum valve. Check the valve for food debris. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | FoodSaver |
| Model Number | FM3920-ECR |
| Material | Plastic |
| Color | Black |
| Item Weight | 4 pounds |
| Power Source | HandHeld (for accessory), Electric (main unit) |
| Operation Mode | Manual |
| Wattage | 130 watts |
| UPC | 053891111669 |
9. Warranty and Support
The FoodSaver FM3920 is backed by a 5-year limited warranty. For warranty claims, technical support, or further assistance, please contact FoodSaver customer service. Refer to the official FoodSaver website or your purchase documentation for contact details.