Introduction
The Ultrean 4.2 Quart Electric Air Fryer (Model AF01) is designed to provide a healthier alternative to traditional deep frying, allowing you to enjoy crispy foods with significantly less fat and oil. This versatile appliance utilizes rapid air technology to cook food evenly, making it suitable for air frying, grilling, roasting, and baking. Its user-friendly design and easy-to-clean components ensure a convenient cooking experience.
Important Safety Information
WARNING: This product may 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.
- Always place the air fryer on a stable, heat-resistant surface.
- Do not block any ventilation openings.
- Ensure the appliance is unplugged when not in use and before cleaning.
- Do not immerse the main unit in water or any other liquid.
- Keep hands and face clear of the hot air vents.
- This appliance is for household use only.
- Children should be supervised to ensure they do not play with the appliance.
Product Overview
The Ultrean Air Fryer features a compact design with intuitive controls for easy operation. Key components include the main unit, a removable nonstick frying basket, and a crisper plate.

Figure 1: Ultrean Air Fryer with its basket containing fries, demonstrating its primary function.

Figure 2: Detailed view of the control panel, highlighting the temperature and time adjustment buttons, along with the power switch.
Components:
- Main Unit: Houses the heating element and fan.
- Control Panel: Digital LCD display with touch controls for temperature and time.
- Frying Basket: Nonstick, removable basket for holding food.
- Crisper Plate: Sits at the bottom of the frying basket to allow air circulation around food.
- Handle: Heat-resistant handle for safe removal of the basket.

Figure 3: Contents of the Ultrean Air Fryer package, including the air fryer unit, a bonus cookbook, user manual, and warranty card.
Setup
- Unpack: Carefully remove all packaging materials and promotional labels from the air fryer.
- Clean Components: Wash the frying basket and crisper plate with warm, soapy water. Rinse thoroughly and dry completely. Wipe the main unit with a damp cloth.
- Assemble: Place the crisper plate inside the frying basket. Insert the assembled basket into the main unit until it clicks securely into place.
- Placement: Position the air fryer on a stable, level, heat-resistant surface, ensuring adequate air circulation around the unit. Keep it away from walls and other appliances.
- Power Connection: Plug the power cord into a grounded electrical outlet.
Operating Instructions
Basic Operation:
- Power On: Plug in the air fryer. The power button will illuminate. Press the power button to turn on the unit.
- Preheating (Optional but Recommended): For best results, preheat the air fryer for 3-5 minutes before adding food. Set the desired temperature (e.g., 370°F - 400°F) and time, then press start.
- Load Food: Carefully pull out the frying basket. Place food onto the crisper plate in a single layer to ensure even cooking. Do not overcrowd the basket.
- Set Temperature and Time: Use the temperature control buttons (+ / -) to adjust the cooking temperature (180°F-400°F). Use the time control buttons (+ / -) to set the cooking time (0-30 minutes).
- Start Cooking: Press the power button again to begin the cooking cycle.
- Shake/Flip Food: For even browning and crisping, it is recommended to shake or flip food halfway through the cooking time. Carefully pull out the basket, shake/flip, and reinsert. The air fryer will resume cooking automatically.
- Completion: The air fryer will beep when the cooking time is complete. Carefully remove the basket and transfer food to a serving dish.
Cooking Tips:
- For extra crispiness, lightly spray or toss food with a small amount of oil.
- Smaller food items typically require shorter cooking times.
- Avoid overfilling the basket to ensure proper air circulation and even cooking.
- You can open the basket at any time during cooking to check on food or shake it. The air fryer will pause and resume when the basket is reinserted.

Figure 4: Illustration of the 360° Rapid Heat Circulation technology within the Ultrean Air Fryer, ensuring even cooking.
Maintenance and Cleaning
Regular cleaning ensures optimal performance and extends the life of your Ultrean Air Fryer. Always unplug the appliance and allow it to cool completely before cleaning.
- Frying Basket and Crisper Plate: These components are nonstick and dishwasher safe. For stubborn residue, soak them in warm, soapy water before cleaning.
- Main Unit: Wipe the exterior with a damp cloth. Do not use abrasive cleaners or immerse the main unit in water.
- Interior: Clean the interior with a damp cloth and mild detergent if necessary. Ensure no water enters the heating element.
- Storage: Store the air fryer in a cool, dry place once it is completely clean and dry.

Figure 5: The nonstick frying pot and flat basket design, illustrating their ease of cleaning and dishwasher-safe feature.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Air fryer does not turn on. | Not plugged in; basket not properly inserted. | Ensure the power cord is securely plugged into a grounded outlet. Push the frying basket firmly into the main unit until it clicks. |
| Food is not crispy. | Basket overcrowded; insufficient oil; temperature too low. | Cook food in smaller batches. Lightly spray or toss food with oil. Increase temperature or cooking time. Shake the basket frequently. |
| White smoke coming from the appliance. | Grease residue from previous use; fatty ingredients. | Clean the basket and crisper plate thoroughly after each use. For fatty foods, place a piece of aluminum foil under the crisper plate to catch excess grease. |
| Appliance beeps excessively. | Normal operation (e.g., end of cycle, basket removal). | This is often normal. If persistent and not related to operation, consult customer support. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Ultrean |
| Model Name | AF01 |
| Capacity | 4.2 Quarts (4 Liters) |
| Color | Blue |
| Product Dimensions | 11.26"D x 13.21"W x 12.42"H |
| Item Weight | 9.97 Pounds |
| Material | Plastic (Outer), Nonstick (Inner) |
| Wattage | 1500 Watts |
| Voltage | 120 Volts (AC) |
| Temperature Range | 180°F - 400°F (82°C - 200°C) |
| Timer Range | 0-30 minutes |
| Control Method | Touchscreen |
| Special Feature | Dishwasher Safe (basket), UL Certified |
| Air Frying Technology | Rapid Air Technology |
| UPC | 606024837426 |
Warranty and Support
Ultrean products are designed for durability and performance. The Ultrean Air Fryer comes with a 1-year warranty. For any product inquiries, technical support, or warranty claims, please refer to the contact information provided in your included Warranty Card or visit the official Ultrean website.
You can also find additional support and product information by visiting the Ultrean Store on Amazon.





