1. Safety Instructions
Read all instructions before using this appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always place the unit on a stable, level surface.
- Do not operate the unit with a damaged cord or plug.
- Do not insert objects into the air inlet or outlet.
- Unplug the unit before filling the water tank, cleaning, or performing any maintenance.
- Do not use the unit near water or in excessively humid environments.
- Keep out of reach of children and pets.
- Ensure the power supply matches the voltage specified on the unit's rating label.
- Do not block the air vents.
2. Product Overview
The Uthfy LFJ-01A-2 is a 3-in-1 evaporative air cooler designed to provide cooling, humidification, and fan functions for various indoor and outdoor spaces.
2.1 Components

Image: The Uthfy LFJ-01A-2 Evaporative Air Cooler, shown with its remote control and a set of four ice packs. The cooler features a tall, rectangular design with a visible 8-gallon water tank at the bottom.
- Evaporative Air Cooler Unit
- Remote Control
- Ice Packs (4 included)
- User Manual (this document)
2.2 Key Features
- Powerful Cooling: Delivers 2500 CFM airflow, suitable for spaces up to 600 sq.ft.
- Wide Oscillation: 120° oscillation for broad air distribution.
- Efficient Evaporative Cooling: Utilizes 3 high-efficiency cooling pads and water circulation for rapid cooling.
- Large Water Tank: 8-gallon capacity for extended operation, with a visible water level indicator.
- Convenient Controls: Includes a remote control and an intuitive control panel.
- Multiple Settings: 3 speeds (Low, Medium, High) and 3 modes (Normal, Natural, Sleep).
- Programmable Timer: 12-hour timer for scheduled operation.
- Portability: Equipped with 4 universal wheels (2 with brakes) for easy movement.
3. Setup
3.1 Unpacking
- Carefully remove the air cooler from its packaging.
- Remove all packing materials, including any protective films or tapes.
- Verify that all components listed in Section 2.1 are present.
3.2 Placement
- Place the unit on a firm, level surface to prevent tipping.
- Ensure there is adequate space around the unit for proper airflow (at least 8 inches from walls or furniture).
- For optimal evaporative cooling, place the unit in an area with good ventilation, such as near an open window or door.
3.3 Filling the Water Tank
- Ensure the unit is unplugged from the power outlet.
- Locate the top-fill water inlet.
- Pour clean, cool water into the tank. Do not exceed the 'MAX' water level indicator. The tank capacity is 8 gallons.
- For enhanced cooling, place the provided ice packs (after freezing them) into the water tank.
- Close the water inlet cover securely.
4. Operating Instructions
4.1 Control Panel and Remote Control
The unit can be operated using the control panel on top of the unit or the included remote control. Ensure the remote control has working batteries.
4.2 Power On/Off
- Plug the power cord into a standard electrical outlet.
- Press the POWER button on the control panel or remote control to turn the unit on or off.
4.3 Adjusting Fan Speed
- Press the SPEED button repeatedly to cycle through Low, Medium, and High fan speeds.
4.4 Selecting Operating Mode
- Press the MODE button repeatedly to select from Normal, Natural, or Sleep modes.
- Normal Mode: Provides a consistent airflow at the selected speed.
- Natural Mode: Simulates natural breeze by varying fan speed.
- Sleep Mode: Operates at a lower, quieter speed for undisturbed rest.
4.5 Oscillation Function
- Press the OSC (Oscillation) button to activate or deactivate the 120° oscillation feature, which distributes air across a wider area.
4.6 Timer Function
- Press the TIMER button repeatedly to set the desired operating time, from 1 to 12 hours. The unit will automatically turn off after the set time.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your evaporative air cooler. Always unplug the unit before cleaning.
5.1 Water Tank Cleaning
- Unplug the unit.
- Locate the bottom drain outlet. Open it to drain any remaining water from the tank.
- Clean the inside of the water tank with a soft cloth and mild detergent. Rinse thoroughly with clean water.
- Ensure the drain outlet is securely closed before refilling.
- Clean the water tank regularly to prevent mold and mildew growth.
5.2 Cooling Pad Cleaning
- Refer to the unit's design for access to the cooling pads. These typically slide out from the back or side.
- Rinse the cooling pads under running water to remove dust and mineral deposits. Do not use harsh chemicals.
- Allow the pads to air dry completely before reinserting them into the unit.
5.3 Exterior Cleaning
- Wipe the exterior surfaces of the unit with a soft, damp cloth.
- Do not use abrasive cleaners or solvents.
5.4 Storage
- Before storing, ensure the water tank is empty and clean, and the cooling pads are dry.
- Store the unit in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cover the unit to protect it from dust.
6. Troubleshooting
If you encounter issues with your Uthfy Evaporative Air Cooler, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not power on | No power supply; Power cord not plugged in; Power outlet malfunction | Ensure unit is plugged into a working outlet; Check circuit breaker; Try a different outlet. |
| No or weak airflow | Air inlet/outlet blocked; Fan speed set too low | Clear any obstructions; Increase fan speed. |
| Unit is not cooling effectively | Water tank empty; Cooling pads dirty or dry; Room humidity too high; Insufficient ventilation | Fill water tank; Clean/wet cooling pads; Ensure adequate ventilation; Add ice packs to water. |
| Unusual noise | Unit not on a level surface; Foreign object in fan; Water pump issue | Place on a level surface; Unplug and check for obstructions; Contact support if noise persists. |
| Water leakage | Water tank overfilled; Drain plug not secured | Do not overfill past 'MAX' line; Ensure drain plug is tightly closed. |
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Uthfy |
| Model Name | Swamp Cooler (LFJ-01A-2) |
| Special Feature | 3-IN-1 Evaporative Air Cooler (Cooler, Fan, Humidifier) |
| Color | Grey |
| Airflow (CFM) | 2500 |
| Oscillation | 120° |
| Water Tank Capacity | 8 Gallons |
| Timer | 12 Hours |
| Speeds | 3 (Low, Medium, High) |
| Modes | 3 (Normal, Natural, Sleep) |
| Noise Level | 45 Decibels |
| Product Dimensions | 13.2"D x 16.8"W x 35.5"H |
| Voltage | 120 Volts |
| Item Weight | 18.1 pounds |
| UPC | 774882977148 |
8. Warranty and Support
8.1 Warranty Information
This Uthfy Evaporative Air Cooler is covered by a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty does not cover damage caused by misuse, neglect, accident, unauthorized repair, or normal wear and tear.
8.2 Customer Support
For technical assistance, warranty claims, or any questions regarding your Uthfy Evaporative Air Cooler, please contact Uthfy customer support. Refer to the product packaging or the official Uthfy website for current contact information.







