Installation Guide
Tools Needed:
- Clean cloth
- Mild detergent
- Measuring tape
- Level surface
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.
- Clean Interior: Wipe the interior and exterior with a damp cloth and mild detergent, then dry thoroughly.
- Position Properly: Ensure at least 4 inches of clearance on all sides for proper ventilation and heat dissipation.
- Electrical Connection: Plug into a properly grounded 120V, 60Hz outlet. Do not use an extension cord.
- Initial Heating: Run the toaster oven empty at 400°F for 15 minutes to burn off any manufacturing residues.
- Test Functions: Test all functions including toast, bake, and broil settings to ensure proper operation.
Specifications
| Model Series | TMO-456HT |
| Type | Countertop Toaster Oven |
| Color | Stainless Steel / Black |
| Capacity | 4 slices / 12" pizza |
| Power Consumption | 1500W |
| Control Type | Digital Controls with LED Display |
| Temperature Range | 150°F - 450°F |
| Timer Range | 1-60 minutes + stay-on function |
| Cooking Functions | Toast, Bake, Broil, Warm, Pizza, Cookies |
| Dimensions (HxWxD) | 12.5 x 16 x 14 inches |
| Weight | 15.8 lbs |
| Power Requirements | 120V, 60Hz, 12.5A |
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
Digital Control Panel
Easy-to-use digital controls with precise temperature and timer settings for accurate cooking results every time.
Convection Technology
Built-in convection fan circulates hot air for faster, more even cooking and browning with reduced cooking times.
6 Cooking Functions
Multiple cooking modes including toast, bake, broil, warm, pizza, and cookies for versatile meal preparation.
Non-Stick Interior
Easy-to-clean non-stick interior and removable crumb tray for simple maintenance and cleaning.
Stay-On Function
Continuous operation mode allows for extended cooking times beyond the 60-minute timer limit.
Interior Light
Built-in interior light lets you monitor cooking progress without opening the door and losing heat.
Cooking Functions Explained
Toast Function
Perfect for toasting bread, bagels, and English muffins with adjustable browning control
Bake Function
Ideal for baking cookies, muffins, casseroles, and other baked goods with even heat distribution
Broil Function
Top heating element for melting cheese, browning toppings, and cooking thin cuts of meat
Warm Function
Low temperature setting to keep cooked foods warm without continuing to cook them
Pizza Function
Optimized temperature and airflow for cooking frozen or fresh pizza with crispy crust
Cookies Function
Specialized setting for baking cookies with perfect browning and consistent results
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Toaster oven won't turn on | Power issue, door not closed properly | Check power supply, ensure door is closed completely |
| Uneven toasting/cooking | Rack position incorrect, overcrowding | Adjust rack position, reduce food quantity, rotate halfway |
| Food burning | Temperature too high, cooking time too long | Reduce temperature, shorten cooking time, use lower rack |
| Smoke during operation | Food debris, grease buildup, improper food | Clean interior, remove crumbs, avoid fatty foods |
| Display not working | Power surge, control board issue | Unplug for 5 minutes, reset, check power source |
| Door not closing properly | Food obstruction, hinge issue, misalignment | Check for obstructions, inspect hinges, realign door |
Error Codes
- E1: Temperature sensor error - Unplug for 10 minutes, then restart
- E2: Overheating protection - Allow to cool down before next use
- E3: Door open during operation - Close door properly
- E4: Control panel error - Reset by unplugging for 5 minutes
- E5: Heating element failure - Contact service center
- E6: Fan motor error - Check for obstructions, contact service
Manual Downloads
Current Model Manuals
TMO-456HT
4-Slice Digital Toaster Oven
TMO-432HT
4-Slice Convection Oven
TMO-428HT
4-Slice Basic Toaster Oven
TMO-460HT
6-Slice Digital Toaster Oven
Popular Previous Models
TMO-415HT
4-Slice Analog Toaster Oven
TMO-410HT
4-Slice Standard Oven
TMO-405HT
2-Slice Compact Oven
TMO-398HT
4-Slice Basic Model