Introduction
This manual provides essential information for the safe and efficient operation of your Panasonic NN-SN966S Microwave Oven. This 1250-Watt, 2.2 cubic foot capacity microwave features Inverter Technology for consistent cooking and a Genius Sensor for automatic adjustments, ensuring optimal results for a variety of foods.

Front view of the Panasonic NN-SN966S Microwave Oven.
Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, injury to persons, or exposure to excessive microwave energy.
- Read all instructions before using the appliance.
- Do not operate the oven if the door or door seals are damaged.
- Do not heat liquids or other foods in sealed containers as they are liable to explode.
- Ensure proper ventilation around the unit.
- This appliance is equipped with a Child Safety Lock feature. Refer to the operating instructions for activation and deactivation.
Setup and Installation
The Panasonic NN-SN966S is designed for countertop installation. Ensure adequate space for proper ventilation.
- Placement: Place the microwave on a flat, stable surface.
- Ventilation: Allow sufficient clearance around the oven for air circulation. Do not block air vents.
- Power Supply: Connect the microwave to a properly grounded 120 Volt, 60Hz power outlet.
- Turntable Installation: Place the roller ring in the center of the oven floor. Place the glass tray on top of the roller ring, ensuring it is seated correctly.
Dimensions
| Measurement | Value |
|---|---|
| External Dimensions (H x W x D) | 14 x 23.9 x 19.4 inches |
| Internal Dimensions (H x W x D) | 10.94 x 18.44 x 18.50 inches |
| Turntable Diameter | 16.5 inches |

Detailed dimensions of the microwave oven for proper placement.
Operating Instructions
Inverter Technology
The Inverter Technology provides a seamless stream of cooking power at every temperature. Unlike traditional microwaves that pulse power on and off, Inverter Technology delivers consistent, evenly prepared food without overcooking, preserving flavor and texture.

Visual representation of even heating with Inverter Technology compared to traditional microwaves.
Genius Sensor
The built-in Genius Sensor automatically adjusts power levels and cooking or defrosting times based on the amount of steam produced by the food. This eliminates guesswork for optimal cooking results.

Control panel highlighting the Genius Sensor and other functions.
Auto Cook Options
The microwave features 14 preset menu items for common foods, allowing for quick and convenient preparation. Examples include:
- Popcorn (3 levels)
- Frozen Entrees
- Frozen Pizza (single)
- Frozen Vegetables
- Oatmeal
- Potatoes
- Soup
- Rice
- Stew
- Beverages

A selection of auto-cook options available on the microwave.
Power Levels
The microwave offers 11 precise power settings to suit various cooking needs, from high-power cooking to gentle warming.
Quick 30
Use the "Quick 30" button to quickly add 30 seconds of cooking time at full power. Press multiple times to add more time.
Keep Warm Feature
This feature allows you to keep foods like soups, gravies, or desserts warm until they are ready to be served, maintaining their freshness.
Turbo Defrost
The advanced Inverter Turbo Defrost feature speeds up defrosting time, ensuring meat thaws evenly without starting to cook the edges.
Maintenance
Regular cleaning ensures optimal performance and longevity of your microwave oven.
- Interior Cleaning: Wipe the interior with a soft cloth and mild detergent after each use. The smooth interior surface is designed for easy cleaning.
- Turntable: The glass turntable and roller ring can be removed and washed with warm soapy water or in a dishwasher.
- Exterior Cleaning: Clean the exterior surfaces with a soft, damp cloth. Avoid abrasive cleaners.
Troubleshooting
If you encounter issues with your microwave, refer to the following common solutions:
- Oven does not start: Ensure the power cord is securely plugged in. Check if the door is closed properly. Verify that a cooking time has been set.
- Food not heating: Check the power level setting. Ensure the door is fully closed.
- Uneven heating: Stir or rotate food halfway through cooking. Ensure appropriate dishware is used.
- Display shows "P" followed by a number: This indicates a power level setting. If the display is cycling continuously or unresponsive, try unplugging the unit for a few minutes and then plugging it back in. If the issue persists, contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Panasonic |
| Model Number | NN-SN966S |
| Capacity | 2.2 Cubic Feet |
| Wattage | 1250 Watts |
| Voltage | 120 Volts |
| Item Weight | 37 Pounds |
| Material | Aluminum (exterior finish) |
| Color | Stainless Steel / Silver |
| Special Feature | Child Safety Lock |
| Installation Type | Countertop |
Official Product Video
This video from Panasonic demonstrates the Inverter Technology and Genius Sensor features of Panasonic microwave ovens, highlighting even cooking and efficient operation.
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your product or visit the official Panasonic support website.
You can also visit the Panasonic Store on Amazon for additional product information and resources.