Ninja Foodi Smart XL Grill Manual: A Comprehensive Guide
This manual details the Ninja Foodi Smart XL Grill (AG551), offering guides, troubleshooting, recipes, and safety information for optimal indoor grilling experiences.
Welcome to the world of convenient and versatile indoor grilling with the Ninja Foodi Smart XL Grill! This innovative appliance combines the power of a grill, air fryer, and more, all in one compact unit. Whether you’re craving perfectly seared steaks, crispy air-fried favorites, or delicious grilled vegetables, the Ninja Foodi Smart XL delivers exceptional results with ease.
This comprehensive guide will walk you through every aspect of your new grill, from unboxing and setup to mastering its smart programs and manual controls. We’ll cover cleaning, maintenance, troubleshooting, and even provide inspiring recipes to get you started; Explore the features that make this model – specifically the AG551 – a standout choice for indoor cooking enthusiasts. Prepare to elevate your culinary creations!
Unboxing and Component Identification
Carefully unpack your Ninja Foodi Smart XL Grill and verify all components are present. You should find the grill base, the grill grate, the splatter shield, and the removable 6-quart cooking pot. Also included are the crisping basket for air frying, a user manual, and a quick start guide. Inspect each part for any damage that may have occurred during shipping.
Familiarize yourself with each component’s function. The grill grate provides direct heating for searing and grilling, while the cooking pot is ideal for various cooking methods. The crisping basket ensures even air frying. Retain the packaging for potential future transport or warranty claims. Proper identification of these parts is crucial for safe and effective operation.
Control Panel Overview
The Ninja Foodi Smart XL Grill’s control panel features intuitive buttons and a digital display for effortless operation. Key elements include power, start/pause, and function selection buttons (Grill, Air Fry, etc.). Dedicated plus and minus buttons adjust temperature and time settings. The ‘Smart Program’ button accesses pre-set cooking options for various foods.

The control panel allows customization of cooking parameters within each function. Users can modify default times and temperatures to suit their preferences, with settings saved for future use. Understanding these controls is essential for maximizing the grill’s versatility and achieving desired cooking results. Explore each button to unlock the full potential of your Ninja Foodi.
Understanding the Digital Display
The digital display on your Ninja Foodi Smart XL Grill provides crucial information during operation. It prominently shows the selected cooking function (Grill, Air Fry, etc.), the set temperature, and the remaining cooking time. When using Smart Programs, the display indicates the program name and its progress.
Error codes, if any, are also displayed here, prompting users to consult the troubleshooting section of the manual. The display dynamically updates to reflect changes made via the control panel buttons. Familiarizing yourself with the display’s indicators ensures precise control and monitoring of your cooking process, leading to consistently delicious results.
Setting Up Your Grill for First Use
Before your first culinary adventure with the Ninja Foodi Smart XL Grill, proper setup is essential. Carefully remove all packaging materials and inspect the grill and its components for any damage. Wash the grill plate, crisper basket, and splatter shield with warm, soapy water – these parts are dishwasher safe for convenience.
Wipe down the interior and exterior of the grill with a damp cloth. Perform a test run by running the grill on the ‘Grill’ function at 400°F for 10 minutes; this burns off any residual manufacturing oils. A slight odor is normal during this initial burn-off period. Ensure adequate ventilation during this process.
Smart Programs Explained
The Ninja Foodi Smart XL Grill boasts pre-programmed settings for effortless cooking. These “Smart Programs” automatically adjust time and temperature for popular foods, simplifying meal preparation. Programs include Grill, Air Fry, Roast, Bake, Dehydrate, and Keep Warm. Each program offers default settings, but customization is key – you can adjust time and temperature to suit your preferences.
The grill intelligently learns your adjustments, saving your customized settings for future use. This feature streamlines your cooking process, delivering consistent results every time. Explore each program to discover its capabilities and unlock a world of culinary possibilities with minimal effort.
Grill Function – Detailed Settings
The Grill function delivers char-grilled marks and flavors indoors. Temperature ranges from 325°F to 500°F, offering versatility for various proteins and vegetables. Time settings extend up to 60 minutes, adjustable in one-minute increments. For medium-rare steak, a temperature of 400°F for approximately 6-8 minutes is recommended. Leaner cuts benefit from lower temperatures and longer cooking times to prevent drying.
Utilize the High Grill setting for searing and achieving a crispy exterior. The Low Grill setting is ideal for delicate items or finishing cooking. Remember to preheat the grill for optimal results. Experiment with different settings to perfect your grilling technique and achieve your desired level of doneness.
Air Fry Function – Temperature and Time Control

The Air Fry function utilizes rapid air circulation for crispy, golden-brown results with little to no oil. Temperature control ranges from 105°F to 400°F, catering to diverse food types. Time settings extend up to 60 minutes, adjustable in one-minute increments. For crispy french fries, 375°F for 15-20 minutes is a good starting point, shaking halfway through.

Lower temperatures are suitable for dehydrating or reheating, while higher temperatures excel at cooking frozen snacks. The Air Crisp Basket ensures optimal airflow. Experiment with temperature and time combinations to achieve your preferred level of crispness. Remember to avoid overcrowding the basket for even cooking.
Manual Mode Operation
Manual Mode grants complete control over cooking parameters, bypassing pre-programmed settings. This is ideal for recipes requiring precise temperature and time adjustments. To access Manual Mode, select it from the main menu on the digital display. You can then independently set the desired temperature, ranging from 105°F to 500°F, and cooking time, up to 99 minutes and 59 seconds.
Manual Mode is particularly useful for searing, slow cooking, or achieving specific doneness levels. Regularly monitor your food during manual operation, as there are no automatic shut-off features. Utilize the pause/resume function as needed. Remember to adjust settings based on food thickness and quantity.
Cleaning and Maintenance
Regular cleaning ensures optimal performance and longevity of your Ninja Foodi Smart XL Grill. Always unplug the grill and allow it to cool completely before cleaning. Several components are dishwasher safe, including the grill grate, splatter shield, and cooking pot – check the manual for confirmation. For stubborn residue, soak these parts in warm, soapy water.
Proper grill plate cleaning involves removing excess grease with a paper towel, then gently scrubbing with a non-abrasive sponge. Avoid harsh chemicals or scouring pads, which can damage the non-stick coating. Wipe down the exterior with a damp cloth. Regularly empty the grease tray to prevent smoke and odors.
Dishwasher Safe Parts
Convenience is key with the Ninja Foodi Smart XL Grill, and several components are designed for easy dishwasher cleaning. The grill grate, splatter shield, and cooking pot are all confirmed to be top-rack dishwasher safe. This simplifies cleanup after grilling, air frying, or utilizing other smart programs.
However, always refer to your specific model’s manual (AG551) to verify dishwasher compatibility, as variations may exist. While dishwasher safe, handwashing these parts can prolong their lifespan and maintain optimal non-stick performance. Avoid using harsh detergents or abrasive cleaners, even in the dishwasher, to preserve the coating’s integrity.
Proper Grill Plate Cleaning Techniques
Maintaining your Ninja Foodi Smart XL Grill’s (AG551) grill plate is crucial for optimal performance and longevity. After each use, allow the grill plate to cool completely before cleaning. Remove any excess food debris with a soft cloth or scraper – avoid metal utensils that can damage the non-stick coating.
For stubborn residue, add warm, soapy water to the grill plate and let it soak for a few minutes. Gently scrub with a non-abrasive sponge. Thoroughly rinse and dry. While the grill plate is dishwasher safe, handwashing preserves the coating. Never immerse the grill plate in water while it’s still hot, and avoid harsh chemicals.
Troubleshooting Common Issues
Encountering issues with your Ninja Foodi Smart XL Grill (AG551)? Here’s a guide to common problems. If the grill isn’t heating, ensure it’s properly plugged in and the power outlet is functioning. Check the control panel settings and confirm a program or manual setting is selected.

Smoke during operation often results from high-fat foods. Reduce fat content or use the splatter shield. If excessive smoke persists, ensure the grill plate is clean. Error codes indicate specific problems; consult the “Understanding Error Codes” section for details. For persistent issues, refer to the Ninja Foodi website or support for assistance.
Grill Not Heating Up
If your Ninja Foodi Smart XL Grill (AG551) isn’t heating, begin with basic checks. First, verify the power cord is securely plugged into a working electrical outlet. Test the outlet with another appliance to confirm it’s functioning correctly. Next, examine the control panel; ensure a grilling program or manual setting is actively selected.
Confirm the grill plate is correctly positioned and making proper contact. If the issue persists, try resetting the grill by unplugging it for a few minutes, then plugging it back in. Refer to the full troubleshooting section or Ninja’s support resources if these steps don’t resolve the problem.
Smoke During Operation
Some smoke during grilling is normal, especially with fattier foods. However, excessive smoke indicates a potential issue. Ensure sufficient ventilation in your kitchen by opening windows or using a range hood. Check the drip tray; excessive grease buildup can cause smoking. Empty and clean it regularly, as recommended in the maintenance section.

Avoid overcrowding the grill plate, as this can lead to increased smoke. Lowering the temperature slightly may also help. If smoking persists despite these measures, ensure you’re using appropriate cooking oils with high smoke points. Consult the manual’s safety precautions for further guidance.
Safety Precautions
Always unplug the Ninja Foodi Smart XL Grill before cleaning and when not in use. Never immerse the unit, cord, or plug in water or other liquids. Avoid touching hot surfaces; use oven mitts or handles. Ensure the grill is placed on a stable, heat-resistant surface away from flammable materials.
Do not operate the appliance with a damaged cord or plug. Keep the ventilation openings clear of obstructions. Supervise children closely when the grill is in use. Never leave the grill unattended during operation. Allow the unit to cool completely before disassembly or storage. Refer to the full manual for comprehensive safety guidelines.

Recipes and Cooking Ideas
Explore diverse culinary possibilities with your Ninja Foodi Smart XL Grill! Achieve perfectly grilled steaks and meats using the dedicated grilling guide, adjusting time and temperature for desired doneness. Experiment with vibrant vegetable grilling – from zucchini and bell peppers to corn on the cob – utilizing the grill’s even heating.
Beyond grilling, discover air frying capabilities for crispy fries, chicken wings, and more. Utilize smart programs for convenience or customize settings for personalized results. The manual provides a starting point; online resources offer countless recipes and inspiration to elevate your indoor cooking experience;
Steak and Meat Grilling Guide

Achieving restaurant-quality steaks is simple with the Ninja Foodi Smart XL Grill. For medium-rare (130-135°F), grill a 1-inch steak for approximately 6-8 minutes, flipping halfway through; Adjust time for thickness and desired doneness – use the grill function and monitor internal temperature with a meat thermometer for accuracy.
Chicken breasts benefit from 8-10 minutes per side, ensuring they reach 165°F. Ground beef patties require 5-7 minutes per side. Utilize the smart programs as a starting point, then customize to your preference. Remember preheating is crucial for optimal searing and even cooking, enhancing flavor and texture.
Vegetable Grilling Guide
The Ninja Foodi Smart XL Grill excels at perfectly grilled vegetables, retaining their crispness and flavor. Heartier vegetables like bell peppers, zucchini, and onions require 7-9 minutes total, flipping once. Brush lightly with oil and season before grilling for enhanced taste and prevent sticking.
Delicate vegetables such as asparagus and mushrooms cook faster, around 5-7 minutes. Consider using the air fry function for a slightly different texture. Preheating the grill is essential for achieving those desirable grill marks. Experiment with different marinades and seasonings to elevate your vegetable grilling game – the possibilities are endless!

Customizing Smart Programs
The Ninja Foodi Smart XL Grill’s Smart Programs are convenient, but customization unlocks its full potential. You can adjust cooking times and temperatures within each program to suit your preferences and ingredient thickness. These personalized settings are automatically saved for future use, streamlining your cooking process.
To customize, simply select a Smart Program, then use the control panel to modify the time and temperature. The grill remembers your adjustments, eliminating the need to re-enter them each time. This feature is invaluable for consistently achieving perfect results with your favorite recipes, ensuring a tailored grilling experience every time.
Understanding Error Codes
The Ninja Foodi Smart XL Grill utilizes error codes to diagnose potential issues, displayed on the digital screen. These codes aren’t causes of the problem, but indicators requiring attention. Common codes include those related to temperature sensor malfunctions or issues with the grill plate connection.

Consult the manual for a complete list and corresponding solutions. Often, simply restarting the grill resolves minor errors. For persistent codes, unplugging the unit for several minutes can reset the system. If the error persists after these steps, contacting Ninja Foodi customer support is recommended, providing the specific error code for efficient assistance.
Accessing Additional Resources
For comprehensive support beyond the printed manual, the official Ninja Foodi website is an invaluable resource. It hosts a detailed FAQ section, downloadable manuals for various models (including the AG551), and helpful video tutorials demonstrating features and cleaning procedures.
Ninja’s customer support team is readily accessible via phone and email, offering personalized assistance with troubleshooting or warranty inquiries. Online communities and forums dedicated to Ninja products also provide a platform for users to share tips, recipes, and solutions to common issues. Regularly checking the website ensures access to the latest updates and information.
Ninja Foodi Website and Support
The official Ninja Foodi website (ninjakitchen.com) serves as a central hub for all product-related information and assistance. Users can easily download digital copies of the Smart XL Grill AG551 manual, alongside quick start guides and recipe booklets. The site features an extensive support section with FAQs addressing common concerns and troubleshooting steps.
Direct customer support is available through live chat, email submission forms, and a dedicated phone line. Ninja actively maintains a presence on social media platforms, offering additional support and engaging with the user community. Accessing these resources ensures a seamless experience with your Smart XL Grill.
Warranty Information
Ninja Foodi Smart XL Grill AG551 purchases are typically covered by a one-year limited warranty, protecting against defects in materials and workmanship from the original date of purchase. This warranty encompasses functional parts and performance issues under normal household use. It does not cover damage resulting from misuse, accidents, or unauthorized repairs.
To initiate a warranty claim, retain your proof of purchase and contact Ninja Customer Support via their website or phone line. They will guide you through the process, potentially requiring product inspection or return. Extended warranty options may be available for purchase, offering additional peace of mind beyond the standard coverage period.
Comparing Models: AG551 vs. Other Ninja Foodi Grills
The Ninja Foodi Smart XL Grill (AG551) distinguishes itself with its larger grilling surface compared to models like the AG301, accommodating more food. The IG601 Foodi XL 7-in-1 offers even more functionality, including air frying, roasting, and baking, but at a higher price point. The AG551 focuses on grilling and air frying, providing a streamlined experience.
Compared to the Ninja Foodi Max Pro AG651EU, the AG551 is generally more compact. Consider your cooking needs and counter space when choosing. The AG551’s Smart Programs offer convenience, while some models prioritize manual control.
Advanced Features and Tips
Leverage the Smart Programs for consistent results, but don’t hesitate to customize them – your settings are saved for future use! Experiment with marinade injectors for enhanced flavor penetration, especially with thicker cuts of meat. Preheating is crucial for achieving optimal sear marks and even cooking.
For easier cleanup, lightly oil the grill plate before cooking, preventing food from sticking. Utilize the splatter shield to minimize mess. Remember that the grill excels at achieving crispy textures with its high-heat capabilities. Explore online resources and the Ninja Foodi website for additional recipes and cooking inspiration.