Uthfy HY-40BI-51
Uthfy 41" Swamp Cooler Instruction Manual
Model: HY-40BI-51
Brand: Uthfy
Introduction
The Uthfy 41" Swamp Cooler is a powerful evaporative air cooler designed to provide effective cooling for large spaces up to 1200 sqft. Featuring a robust galvanized steel casing, a 10.6-gallon water tank, and 3-side high-density cooling pads, this unit is ideal for garages, yards, patios, and commercial use. It offers three fan speeds, 1100 oscillation, and convenient water filling options to ensure continuous and efficient cooling.

Figure 1: The Uthfy 41" Swamp Cooler in operation, demonstrating its powerful airflow.
Key Features
- Powerful Evaporative Cooling: 4800 CFM airflow, suitable for spaces up to 1200 sqft.
- Efficient Cooling System: 3-side high-density cooling pads and 3 ice packs for enhanced cooling.
- Large Water Tank: 10.6-gallon capacity for continuous operation.
- Flexible Water Filling: Top-fill, manual-fill, and automatic hose connection options.
- Adjustable Airflow: 3 fan speeds (L/M/H) and 1100 automatic oscillation (side-to-side) with manual vertical adjustment.
- Durable Construction: Sheet metal body with electrostatic powder coating for robustness, impact resistance, and corrosion resistance.
- Portable Design: Equipped with 4 universal wheels (2 with brakes) for easy movement.
- Quiet and Efficient Motor: New copper motor for high efficiency, low energy consumption, and low noise (45 dB).

Figure 2: Illustration of the powerful 4800 CFM airflow and 1200 sqft coverage area.

Figure 3: Internal design highlighting the 3-side cooling pads for instant cooling.

Figure 4: The 1100 oscillation feature ensures wider air coverage for refreshing breezes.

Figure 5: Multiple water filling options for convenience, including top, manual, and auto-fill via hose.

Figure 6: The unit's universal wheels allow for simple and effortless movement.

Figure 7: Versatile application in various environments, from commercial spaces to outdoor patios.
Setup Instructions
- Unpacking: Carefully remove the swamp cooler from its packaging. Retain all packaging materials for future storage or transport.
- Attach Caster Wheels: Locate the four universal wheels (2 with brakes, 2 without) and attach them to the designated slots on the bottom of the unit. Ensure they snap securely into place.
- Positioning: Place the cooler on a flat, stable surface in the desired location. For optimal performance, ensure adequate air circulation around the unit.
- Water Filling: The unit offers multiple ways to fill the 10.6-gallon water tank:
- Top Fill: Open the top lid and pour water directly into the tank.
- Manual Fill: Open the small access door on the front panel and pour water into the reservoir.
- Auto Fill (Hose Connection): Connect a standard garden hose to the hose adapter on the side of the unit. The cooler features an automatic water level control to prevent overfilling.
- Add Ice Packs: For enhanced cooling, place the included ice packs (pre-frozen) into the top tank design.
- Power Connection: Plug the power cord into a standard 120V electrical outlet.
Video 1: Unboxing and initial setup of the Uthfy Swamp Cooler, demonstrating how to prepare the unit for use.
Operating Instructions
The Uthfy Swamp Cooler features a simple mechanical control panel for easy operation.

Figure 8: Overview of the mechanical control panel.
- Power On/Off: Flip the Power switch to the 'On' position to turn on the unit. Flip it to 'Off' to power down.
- Adjust Fan Speed: Press the High, Medium, or Low buttons to select your desired fan speed. Press Stop to turn off the fan.
- Activate Cooling Mode: Flip the Cooling switch to the 'On' position to activate the evaporative cooling function. Ensure the water tank is filled for this mode to operate effectively.
- Activate Oscillation: Flip the Swing switch to the 'On' position to enable the 1100 automatic side-to-side oscillation. Vertical airflow can be adjusted manually.
Video 2: Demonstration of the Uthfy Evaporative Air Cooler's features and operation, including fan speeds and cooling mode.
Maintenance
Regular maintenance ensures optimal performance and longevity of your Uthfy Swamp Cooler.
- Water Tank Cleaning: Periodically drain and clean the 10.6-gallon water tank to prevent mineral buildup and maintain hygiene. A drainage port is located at the bottom for easy emptying.
- Cooling Pad Cleaning: Inspect the 3-side cooling pads regularly. If they appear dirty or clogged, gently clean them with water. Ensure they are fully dry before re-inserting.
- Exterior Cleaning: Wipe down the exterior of the unit with a soft, damp cloth. The electrostatic powder coating makes it easy to clean.
- Storage: When not in use for extended periods, drain the water tank completely, clean the unit, and store it in a dry, cool place.
Troubleshooting
| Problem | Possible Cause & Solution |
|---|---|
| Unit does not power on | Ensure the power cord is securely plugged into a working outlet. Check the power switch is in the 'On' position. |
| No cooling effect | Check if the water tank is filled. Ensure the 'Cooling' switch is in the 'On' position. Verify cooling pads are wet and not clogged. |
| Unusual noise (e.g., rattling) | Check for any loose parts inside the unit. Ensure the unit is on a stable, level surface. If noise persists, contact support. |
| Water leakage | Ensure all connections, especially the hose adapter, are tight and properly sealed. Check for any cracks or damage to the water tank. |
| Weak airflow | Check if the fan speed is set to 'High'. Ensure cooling pads are clean and not obstructed. |
Technical Specifications
| Feature | Detail |
|---|---|
| Brand | Uthfy |
| Model Name | air cooler (HY-40BI-51) |
| Product Dimensions | 17"D x 23"W x 41"H |
| Item Weight | 36.5 pounds |
| Air Flow Capacity | 4800 Cubic Feet Per Minute (CFM) |
| Floor Area Coverage | 1200 Square Feet |
| Reservoir Capacity | 10.6 Gallons |
| Fan Speeds | 3 (High, Medium, Low) |
| Oscillation | 1100 (Side-to-side automatic) |
| Noise Level | 45 dB |
| Voltage | 120 Volts |
| Included Components | Swamp Cooler, 1 x Hose Adapter, 4 x Universal wheels, 3 x Ice Packs, 1 x User Manual |
Warranty and Support
This Uthfy Swamp Cooler comes with a 1 Year Manufacturer Warranty.
For technical support, troubleshooting assistance, or warranty claims, please contact Uthfy customer service through the retailer's platform or visit the official Uthfy website for contact information.
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