1. Important Safeguards
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons. Read all instructions carefully before operating the appliance.
- Do not touch hot surfaces. Use handles or knobs.
- To protect against electric shock, do not immerse cord, plugs, or the appliance 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.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner.
- 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.
- Do not use the appliance for other than intended use.
- Oversize foods or metal utensils must not be inserted in a toaster oven as they may create a fire or risk of electric shock.
- A fire may occur if the oven is covered or touching flammable material, including curtains, draperies, walls, and the like, when in operation.
- Do not store any materials, other than manufacturer's recommended accessories, in this oven when not in use.
- Do not place any of the following materials in the oven: paper, cardboard, plastic, or any materials not specifically designed for oven use.
- Do not cover crumb tray or any part of the oven with metal foil. This will cause overheating of the oven.
2. Product Overview
The Wonderchef 28 Litre Oven Toaster Griller (OTG) is a versatile kitchen appliance designed for baking, grilling, and toasting. It features a rotisserie function, auto-shut off timer, and heat-resistant tempered glass for safe and efficient cooking.
2.1 Components
- Oven Toaster Griller (OTG) Unit
- Chromed Wire Rack
- Baking and Grilling Tray
- Rotisserie Set (Spit Rod, Forks, Handle)
- Tray Handle
- Removable Crumb Tray

2.2 Control Panel
The control panel features four rotary knobs for precise control over cooking functions.
- Heat Function Selector: Choose between upper heating, lower heating, or both.
- Temperature Control: Adjust temperature up to 250°C.
- Rod Selection: Activates the rotisserie function.
- Timer: Set cooking time with an auto-shut off and ready bell.

3. Setup
- Unpacking: Carefully remove the OTG and all accessories from the packaging. Retain packaging for future storage or transport.
- Placement: Place the OTG on a stable, heat-resistant surface, ensuring adequate ventilation around the appliance. Maintain a minimum distance of 10 cm from walls or other objects.
- Initial Cleaning: Wipe the exterior with a damp cloth. Wash all accessories (wire rack, baking tray, rotisserie set, tray handle, crumb tray) with warm, soapy water, rinse thoroughly, and dry.
- First Use (Burn-in): Before first use, operate the oven empty for approximately 15 minutes at the maximum temperature setting (250°C) with both upper and lower heating elements active. This helps burn off any manufacturing residues and odors. Ensure the area is well-ventilated during this process.
4. Operation
The Wonderchef OTG offers multiple cooking functions. Always preheat the oven to the desired temperature before placing food inside.
4.1 General Cooking Steps
- Place the wire rack or baking tray in the desired position.
- Place food on the appropriate accessory.
- Close the oven door.
- Set the desired temperature using the Temperature Control knob.
- Select the desired heating function (upper, lower, or both) using the Heat Function Selector knob.
- Set the cooking time using the Timer knob. The oven will start operating.
- The oven will automatically shut off and ring a bell when the set time expires.
4.2 Baking
For baking cakes, breads, or muffins, use both upper and lower heating elements. The convection mode can be activated for faster, uniform cooking and browning.
- Place the baking tray with food on the middle rack.
- Set the temperature according to your recipe (typically 180-200°C).
- Select both upper and lower heating elements.
- Set the timer.

4.3 Grilling and Roasting
For grilling vegetables or roasting chicken, use the upper heating element. The rotisserie function is ideal for even roasting of whole chicken or larger meat pieces.
- For Grilling: Place food on the wire rack or grilling tray on the top rack. Select the upper heating element.
- For Roasting (Static): Place food on the baking tray on the middle or lower rack. Select both upper and lower heating elements.
- For Rotisserie Roasting: Assemble the rotisserie spit rod with the meat secured by forks. Insert the rotisserie into the designated slots inside the oven. Place the baking tray below to catch drippings. Select the 'Rod Selection' function and the upper heating element.

4.4 Toasting
For toasting bread or other items, use the upper heating element for quick browning.
- Place items directly on the wire rack.
- Set the temperature to a medium-high setting.
- Select the upper heating element.
- Set a short timer, monitoring closely to prevent burning.
5. Cleaning and Maintenance
Regular cleaning ensures optimal performance and extends the life of your OTG. Always unplug the appliance and allow it to cool completely before cleaning.
5.1 Interior Cleaning
- Remove the wire rack, baking tray, and crumb tray.
- Wash these accessories in warm, soapy water. Rinse and dry thoroughly.
- Wipe the interior walls with a damp cloth and mild detergent. Avoid abrasive cleaners or metal scouring pads.
- For stubborn stains, a paste of baking soda and water can be applied, left for a few minutes, then wiped clean.
- Ensure the interior is completely dry before reassembling and using the oven.

5.2 Exterior Cleaning
- Wipe the exterior surfaces with a soft, damp cloth.
- Do not use harsh chemicals or abrasive cleaners.
- Clean the tempered glass door with a glass cleaner or a damp cloth.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven does not turn on. | Not plugged in; power outage; timer not set. | Ensure the appliance is properly plugged into a working outlet. Check circuit breaker. Set the timer knob to the desired cooking duration. |
| Food not cooking evenly. | Incorrect rack position; uneven food placement; heating element selection. | Adjust rack position for optimal heat distribution. Arrange food evenly on the tray. Ensure correct heating elements are selected for the cooking task. Consider using convection mode for uniform cooking. |
| Excessive smoke during operation. | Food drippings on heating elements; accumulated grease/food particles. | Ensure the crumb tray is clean and properly positioned. Clean the interior of the oven and accessories regularly. Avoid overfilling the baking tray. |
| Rotisserie not rotating. | Rotisserie not properly installed; 'Rod Selection' not activated. | Ensure the rotisserie spit rod is correctly seated in the drive socket and support. Turn the 'Rod Selection' knob to activate the rotisserie motor. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Wonderchef |
| Model Number | 63152220 |
| Capacity | 28 Litres |
| Color | Black |
| Product Dimensions (L x W x H) | 50 cm x 35 cm x 31 cm |
| Power Consumption | 220-230V~50Hz~1600W |
| Control Type | Rotating Knob |
| Temperature Range | Up to 250°C |
| Special Features | Rotisserie, Auto-Shut Off Timer, Heat-Resistant Tempered Glass, Multi-Stage Heat Selection, Convection Mode, Inside Lamp |
| Material | Stainless Steel, Tempered Glass |
8. Warranty and Support
This Wonderchef Oven Toaster Griller comes with a 2-year warranty from the date of purchase, covering manufacturing defects. For warranty claims, product registration, or any support inquiries, please refer to the official Wonderchef customer service channels.
You can register your purchase for priority service and access support by visiting the Wonderchef service portal: Wonderchef Service Portal.
For quick after-sales service, you may also contact Wonderchef via WhatsApp by sending "Hi" to 70705 95959.