Important Safety Information
Please read and save these important safety instructions before using this fan. Failure to follow these instructions could result in fire, electric shock, or injury to persons.
- This appliance has a polarized plug (one blade is wider than the other). To reduce the risk of electric shock, this plug is intended to fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do not attempt to defeat this safety feature.
- Always unplug the fan before moving, cleaning, or servicing.
- Do not operate any fan with a damaged cord or plug. Discard fan or return to an authorized service facility for examination and/or repair.
- Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings. Do not route cord under furniture or appliances. Arrange cord away from traffic area and where it will not be tripped over.
- Do not insert or allow fingers or foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire, or damage the fan.
- Do not block air intakes or exhaust in any manner.
- Do not use outdoors. This fan is intended for indoor use only.
- This product is equipped with an ETL listed safety plug and features a patented fused safety plug for added protection.
- WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Product Overview and Features
The Lasko 20 Inch 3-Speed Energy Efficient Box Fan (Model 3723) is designed to provide efficient air circulation and cooling for various indoor spaces. Its robust design and innovative features ensure optimal performance and user convenience.
Figure 1: Front view of the Lasko 20 Inch Box Fan, showcasing its white grille and five-blade design.
- 20-Inch Fan Blade: Provides substantial air movement for effective cooling.
- Wind Ring® System: Engineered to deliver up to 30% more air velocity by focusing air movement through an exclusive grill design.
- Three Quiet Speeds: Offers versatile airflow options from a gentle breeze to powerful circulation, with reduced noise levels.
- Wide-Body Design: Ensures enhanced stability, preventing accidental tipping.
- Built-in Carry Handle: Facilitates easy portability and repositioning of the fan.
- Durable Steel Body: Constructed for longevity and resilience.
- Top Mounted Controls: Conveniently located controls for easy access and operation.
- Fully Assembled: Ready to use right out of the box with minimal setup required.
Figure 2: Angled view of the Lasko 20 Inch Box Fan, highlighting the top-mounted control knob and integrated carry handle.
Setup
The Lasko 20 Inch Box Fan comes fully assembled, requiring minimal setup before use.
- Unpacking: Carefully remove the fan from its packaging. Retain packaging for future storage or transport if needed.
- Attaching Stabilizer Feet (Optional): The fan includes two plastic stabilizer feet. These can be snapped onto the bottom rear of the fan to enhance stability, especially when placed on uneven surfaces or in high-traffic areas. Align the feet with the slots and push firmly until they click into place.
- Placement: Position the fan on a firm, level surface in the desired room. This fan is suitable for indoor use in areas such as bedrooms and living rooms. Ensure the fan is placed away from curtains or other objects that could obstruct airflow or be drawn into the fan blades.
- Power Connection: Plug the fan's polarized plug into a standard 120V AC wall outlet. Ensure the plug is fully inserted.
Operating Instructions
The Lasko 20 Inch Box Fan features simple, top-mounted controls for easy operation.
- Power On/Off: Locate the control knob on the top of the fan. Turn the knob clockwise from the "OFF" position to select a speed setting.
- Selecting Fan Speed:
- Turn the knob to "I" for Low speed.
- Turn the knob to "II" for Medium speed.
- Turn the knob to "III" for High speed.
- Power Off: To turn off the fan, rotate the control knob counter-clockwise back to the "OFF" position. For extended periods of non-use, it is recommended to unplug the fan from the power outlet.
Maintenance
Regular cleaning and maintenance will help ensure the longevity and optimal performance of your Lasko Box Fan.
- Before Cleaning: Always unplug the fan from the electrical outlet before cleaning or performing any maintenance.
- Exterior Cleaning: Use a soft cloth moistened with a mild soap solution to wipe the exterior surfaces of the fan. Do not use gasoline, benzene, thinner, harsh cleaners, or other solvents as these could damage the fan's finish.
- Grille Cleaning: Use a vacuum cleaner with a brush attachment to remove dust and lint from the front and rear grilles. This helps maintain efficient airflow.
- Internal Cleaning: The fan blades are not designed to be removed for cleaning. Do not attempt to open the fan housing.
- Storage: When storing the fan, keep it in a cool, dry place. It is recommended to store it in its original carton or cover it to protect it from dust.
Troubleshooting
If your Lasko Box Fan is not operating as expected, refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan does not operate. | No power to the fan. Fused safety plug tripped. | Ensure the fan is securely plugged into a working electrical outlet. Check the fuse in the plug. If the fuse is blown, replace it with a 5 Amp, 125 Volt fuse. If the problem persists, contact customer support. |
| Reduced airflow or unusual noise. | Dust buildup on grilles or blades. Obstruction near the fan. | Unplug the fan and clean the grilles and blades as described in the Maintenance section. Ensure there are no objects blocking the air intake or exhaust. |
| Burning plastic/electrical smell. | Motor overheating or internal issue. | Immediately unplug the fan. Do not continue to operate. Contact Lasko customer support for assistance. |
If the problem persists after attempting these solutions, please contact Lasko customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Lasko |
| Model Name | Lasko - 20" Premium Box Fan, 3-Speed (3723) |
| Model Number | 3723 |
| Product Dimensions | 4.7"D x 21.2"W x 22"H |
| Item Weight | 5 Pounds (approx. 2.27 kg) |
| Power Source | AC (Corded Electric) |
| Voltage | 120 Volts |
| Wattage | 112 watts |
| Noise Level | 65 dB |
| Number of Blades | 5 |
| Blade Length | 20 Inches |
| Control Method | Touch (Rotary Knob) |
| Number of Power Levels | 3 |
| Indoor/Outdoor Usage | Indoor |
| Special Feature | Portable, Energy Efficient |
| Recommended Uses | Air Circulation, Cooling |
Warranty and Support
This Lasko product comes with a manufacturer's warranty. For specific details regarding the warranty period and coverage, please refer to the documentation included with your purchase or visit the official Lasko website.
For technical assistance, troubleshooting not covered in this manual, or warranty claims, please contact Lasko customer support:
- Lasko Official Website: www.lasko.com
- Lasko Store on Amazon: Visit the Lasko Store
- Refer to your product packaging or the Lasko website for phone numbers or email contact information.
Please have your model number (3723) and purchase date available when contacting support.
