Installation Guide
Tools Needed:
- Measuring tape
- Level
- Cleaning cloth
- Screwdriver set
- Electrical tester
Step-by-Step Installation
- Choose Installation Location: Select a stable, level, heat-resistant surface away from water sources and flammable materials.
- Remove Packaging Materials: Remove all protective films, stickers, and packaging materials from the toaster oven.
- Check Power Requirements: Ensure your outlet matches the voltage requirements (120V, 60Hz). Do not use an extension cord.
- Position the Oven: Place on a stable surface with at least 4 inches of clearance on all sides for proper ventilation.
- Initial Cleaning: Wipe interior and exterior with a damp cloth. Remove any manufacturing residues.
- Accessory Setup: Install removable crumb tray, baking rack, and other accessories according to instructions.
- Test Run: Perform an initial empty heating cycle to burn off any manufacturing residues and ensure proper operation.
Specifications
| Model Series | TMO-456 |
| Type | Countertop Toaster Oven |
| Color | Stainless Steel / Black |
| Capacity | 4 Slices / 12" Pizza |
| Power Consumption | 1500 Watts |
| Control Type | Digital Touch Controls with LCD Display |
| Temperature Range | 150°F - 450°F (65°C - 230°C) |
| Timer Range | 1-60 minutes + Stay-on function |
| Power Requirements | 120V, 60Hz, 12.5A |
| Dimensions (HxWxD) | 12.2 x 16.1 x 11.8 inches |
| Weight | 15.4 lbs (7 kg) |
| Cooking Functions | 8 preset functions |
Warranty Information
- Full Warranty: 1 year parts and labor
- Heating Elements: 2 years warranty
- Additional Coverage: Optional extended warranty available
For warranty service, contact Toastmaster Customer Service at 1-800-947-3744 or visit Toastmaster.com
Key Features
Convection Technology
Built-in fan circulates hot air for faster, more even cooking with reduced cooking times and energy consumption.
Digital Precision Controls
Easy-to-use digital controls with precise temperature settings and timer for consistent cooking results every time.
8 Cooking Functions
Pre-programmed settings for toast, bake, broil, convection bake, convection broil, pizza, cookies, and keep warm functions.
Non-Stick Interior
Easy-to-clean non-stick coating on interior walls and removable crumb tray for quick maintenance.
Extra-Wide Interior
Spacious interior accommodates 4 slices of bread, 12-inch pizza, or 9x9 baking dish for versatile cooking options.
Stay-On Function
Continuous operation setting for extended cooking times, perfect for slow roasting or dehydrating foods.
Cooking Functions Explained
Toast
Perfect for bread, bagels, and English muffins with adjustable browning control
Bake
Traditional baking for cookies, cakes, and casseroles with even heat distribution
Broil
High heat from top element for browning meats, melting cheese, and finishing dishes
Convection Bake
Faster baking with circulating hot air for even browning and reduced cooking time
Pizza
Optimized heat for crispy crust and melted toppings on pizzas up to 12 inches
Keep Warm
Low temperature setting to keep cooked foods warm without overcooking
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Toaster oven won't turn on | Power issue, control lock activated | Check power supply, ensure control lock is disengaged |
| Uneven toasting/baking | Uneven rack placement, overcrowding | Use center rack position, avoid overcrowding, rotate food halfway |
| Food burning on top | Rack too high, broil setting used incorrectly | Lower rack position, use bake instead of broil for baking |
| Display not working | Power surge, control panel issue | Unplug for 10 minutes, then retry. Contact service if persists |
| Smoke during operation | Food debris, manufacturing residues | Clean interior thoroughly, ensure crumb tray is empty |
| Timer not counting down | Control panel error, function selection issue | Reset unit, ensure proper function selection before setting timer |
Error Codes
- E1: Temperature sensor error - Unplug for 10 minutes, then retry
- E2: Overheating protection - Allow to cool completely before use
- E3: Door open during operation - Close door properly
- E4: Control panel error - Reset unit by unplugging for 10 minutes
- E5: Heating element fault - Contact service center
- E6: Fan motor issue - Contact service center
Manual Downloads
Current Model Manuals
TMO-456
4-Slice Digital Toaster Oven
TMO-432
4-Slice Convection Oven
TMO-478
6-Slice Air Fry Toaster Oven
TMO-412
4-Slice Basic Toaster Oven
Popular Previous Models
TMO-398
4-Slice Analog Toaster Oven
TMO-356
2-Slice Compact Oven
TMO-412W
4-Slice White Toaster Oven
TMO-276
2-Slice Basic Toaster Oven