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 the deep fryer.
- Do not touch hot surfaces. Use handles or knobs.
- To protect against electrical shock, do not immerse cord, plugs, or heating element 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. Allow to cool before putting on or taking off parts, and before cleaning the appliance.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner. Contact customer service for examination, repair, or adjustment.
- The use of accessory attachments not recommended by the appliance manufacturer may cause injuries.
- Do not use outdoors.
- Do not let cord hang over edge of table or counter, or touch hot surfaces.
- Do not place on or near a hot gas or electric burner, or in a heated oven.
- Extreme caution must be used when moving an appliance containing hot oil or other hot liquids.
- Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to 'off', then remove plug from wall outlet.
- Do not use appliance for other than intended use.
- Ensure food is thoroughly dry before frying to prevent excessive splattering.
- The appliance is equipped with a magnetic breakaway power cord for safety. If the cord detaches, reattach it securely.
Product Overview
The KRUPS KJ502D51 Deep Fryer is designed for home use, offering a generous 4.5-liter oil capacity and the ability to fry up to 2.6 pounds of food. It features a stainless steel construction and comes with three frying baskets for versatile cooking.
Components:
- Control Panel with Heating Element: Contains temperature and timer controls, preset functions, and the heating coil.
- Oil Tank: Removable stainless steel tank for holding frying oil.
- Lid: Features an integrated odor filter and a viewing window.
- Large Frying Basket: For single, larger batches of food.
- Two Small Frying Baskets: For frying two different foods simultaneously.
- Basket Handles: Detachable for easy storage and cleaning.
- Breakaway Power Cord: Magnetic connection for safety.

Image: The KRUPS KJ502D51 Deep Fryer with its lid open, revealing the large frying basket submerged in oil, actively frying food. The control panel is visible at the back, displaying temperature and time settings.
Setup
- Unpack and Clean: Carefully unpack all components. Wash the oil tank, frying baskets, and lid in warm, soapy water. Rinse thoroughly and dry completely. The heating element and control panel should only be wiped with a damp cloth; never immerse them in water.
- Assemble Heating Element: Place the heating element and control panel assembly securely onto the main fryer body. Ensure it is correctly seated.
- Insert Oil Tank: Place the clean, dry oil tank into the fryer housing.
- Attach Basket Handles: Securely attach the handles to your chosen frying baskets (one large or two small).
- Fill with Oil: Pour cooking oil into the oil tank. Ensure the oil level is between the MIN and MAX fill lines indicated inside the tank. Do not overfill or underfill.
- Position Baskets: Place the empty baskets into the oil tank.
- Close Lid: Place the lid on the fryer.

Image: The KRUPS KJ502D51 Deep Fryer with its lid fully open, showcasing the stainless steel oil tank and the two small frying baskets positioned inside. This view highlights the internal components before operation.
Operating Instructions
The KRUPS KJ502D51 Deep Fryer offers both preset functions and manual control for optimal frying results.
- Connect Power: Ensure the magnetic power cord is securely attached to the fryer and then plug it into a grounded electrical outlet. The display will illuminate.
- Set Temperature: Use the rotary dial on the control panel to select your desired frying temperature. The display will show the set temperature.
- Select Preset (Optional): Press the 'PRESET' button to cycle through the four pre-programmed functions: French Fries, Onion Rings, Donuts, and Chicken. Each preset automatically adjusts the temperature and time for common foods.
- Start Preheating: Press the 'START/STOP' button to begin preheating the oil. The 'OIL READY' indicator light will illuminate when the desired temperature is reached.
- Prepare Food: While the oil is preheating, prepare your food. Ensure food items are as dry as possible to minimize splattering and achieve crispier results.
- Load Baskets: Carefully place food into the frying baskets. Do not overload the baskets, as this can lower oil temperature and result in soggy food.
- Lower Baskets: Once the oil is ready, slowly and carefully lower the baskets containing food into the hot oil. Close the lid.
- Set Timer (Manual Mode): If not using a preset, use the rotary dial to set the desired frying time. Press 'START/STOP' to begin the timer.
- Monitor Cooking: Use the viewing window on the lid to monitor the cooking process without opening the lid, which helps maintain oil temperature and reduce odors.
- Remove Food: When cooking is complete, carefully raise the baskets and allow excess oil to drain back into the tank.
- Serve: Transfer fried food to a plate lined with paper towels to absorb any remaining oil before serving.

Image: A close-up view of the KRUPS KJ502D51 Deep Fryer's control panel, showing the digital display with '350F' and '2:00' (temperature and time) illuminated. Buttons for 'PRESET' and 'START/STOP' are visible, along with the rotary dial and indicator lights for 'ON' and 'OIL READY'.
Product Feature Video
Video: This video demonstrates the key features and ease of use of the KRUPS KJ502D51 Electric Deep Fryer, including its large capacity, multiple baskets, and intuitive control panel with preset functions. It shows the fryer in operation, highlighting its ability to prepare various fried foods.
Maintenance and Cleaning
Proper cleaning ensures the longevity and performance of your deep fryer.
- Cool Down: Always allow the oil and fryer to cool completely before cleaning. This may take several hours.
- Drain Oil: Carefully remove the lid and baskets. If reusing oil, filter it through a fine-mesh sieve or cheesecloth into a clean, airtight container. Dispose of old oil responsibly.
- Disassemble: Remove the control panel with the heating element. Lift out the oil tank from the fryer housing.
- Clean Components:
- Oil Tank, Baskets, and Lid: These parts are generally dishwasher safe. Alternatively, wash them by hand in warm, soapy water, rinse thoroughly, and dry completely.
- Heating Element and Control Panel: Wipe the exterior of the control panel and the heating element with a damp cloth. Do not immerse these parts in water or any other liquid. Ensure they are completely dry before reassembly.
- Fryer Housing: Wipe the exterior of the fryer housing with a damp cloth.
- Odor Filter: The integrated odor filter is designed for long-term use and does not require replacement. It can be cleaned by hand with the lid.
- Reassemble and Store: Once all parts are clean and dry, reassemble the fryer. Store it in a cool, dry place.

Image: The KRUPS KJ502D51 Deep Fryer disassembled, displaying its individual components: the main housing, the removable stainless steel oil tank, the control panel with heating element, the lid, and the frying baskets. This illustrates the ease of cleaning each part.
Troubleshooting
If you encounter issues with your deep fryer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Fryer does not turn on or heat up. | Power cord not properly connected; appliance not plugged in; circuit breaker tripped. | Ensure the magnetic power cord is securely attached to the fryer and plugged into a working outlet. Check your household circuit breaker. |
| Food is not crispy or is soggy. | Oil temperature too low; too much food in the basket; food not dry enough. | Allow oil to reach the set temperature before adding food. Fry in smaller batches. Ensure food is thoroughly patted dry before frying. |
| Excessive smoke during frying. | Oil is old or dirty; oil level too low or too high; food contains too much moisture. | Replace old oil. Ensure oil level is between MIN and MAX lines. Dry food thoroughly. |
| Strong odors during frying. | Normal for deep frying; integrated filter may be saturated. | Ensure adequate ventilation in your kitchen. The integrated filter helps reduce odors but does not eliminate them entirely. |
Specifications
- Model Name: Deep Fryer, Electric Deep Fryer
- Model Number: KJ502D51 (8000035750)
- Brand: KRUPS
- Material: Stainless Steel
- Color: Silver
- Product Dimensions: 17.3"D x 14.6"W x 13"H
- Item Weight: 6.7 Pounds
- Wattage: 1500 watts
- Oil Capacity: 4.5 Liters
- Food Capacity: 2.6 Lbs.
Warranty and Support
This KRUPS appliance is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions, including the duration of the warranty and coverage details.
For technical assistance, troubleshooting beyond this manual, or to inquire about warranty service, please contact KRUPS customer support. Contact information can typically be found on the KRUPS official website or on the warranty documentation.





