Introduction
Thank you for purchasing the DOMO DO9278C 3-in-1 Multifunctional Appliance. This versatile device combines a sandwich maker, waffle iron, and contact grill, offering convenience for preparing various meals. Please read this manual carefully before first use to ensure safe and optimal operation of your appliance. Keep these instructions for future reference.

The DOMO DO9278C appliance shown with prepared panini, waffles, and a breakfast plate, highlighting its versatility.
Important Safety Instructions
- Read all instructions before using the appliance.
- Do not touch hot surfaces. Use handles or knobs.
- To protect against electrical shock, do not immerse cord, plugs, or 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, and before cleaning the appliance.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner. Return appliance to the nearest authorized service facility for examination, repair, or adjustment.
- The use of accessory attachments not recommended by the appliance manufacturer may cause injuries.
- 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.
- Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to "off", then remove plug from wall outlet.
- Do not use appliance for other than intended use.
- Caution: A slight smoke may occur during the first use. This is normal and harmless. Ensure good ventilation.
- Caution: Always ensure both baking plates are correctly mounted before operating the device.
- Caution: Before changing plates, unplug the device from the mains and allow it to cool completely.
- Caution: Do not use metal utensils on the non-stick coating. Use wooden or silicone spatulas to protect the surface.
Setup and First Use
- Unpacking: Carefully remove the appliance and all accessories from the packaging. Dispose of packaging materials responsibly.
- Initial Cleaning: Before first use, wipe the exterior of the appliance with a damp cloth. Clean the interchangeable plates with warm, soapy water, rinse thoroughly, and dry completely.
- Attaching Plates: Select the desired plates (sandwich, waffle, or grill). Insert the plates into the appliance, ensuring they click securely into place. Always ensure both top and bottom plates are installed.
- First Operation: For the first use, it is recommended to operate the appliance empty for approximately 5-10 minutes at a medium temperature setting. This helps to burn off any manufacturing residues. A slight smoke or odor may occur; this is normal. Ensure the area is well-ventilated.
- Cord Storage: The appliance features a cord rewind function at the back for tidy storage after use.

The DOMO DO9278C appliance configured with waffle plates and grill plates, demonstrating its interchangeable plate system.
Operating Instructions
The DOMO DO9278C features an adjustable thermostat and indicator lights for easy operation.
- Preparation: Ensure the correct plates are installed and clean. Lightly grease the plates with cooking oil or butter if desired, especially for waffles, to prevent sticking and enhance browning.
- Power On: Plug the appliance into a suitable electrical outlet. The "Power" indicator light (red) will illuminate.
- Temperature Setting: Turn the adjustable thermostat knob to your desired temperature setting (Low, Medium, Max).
- Preheating: Allow the appliance to preheat. The "Ready" indicator light (green) will illuminate when the appliance has reached the set temperature. This typically takes 3-5 minutes.
- Cooking:
- For Sandwiches (Croques): Place your prepared sandwiches onto the preheated sandwich plates. Close the lid. The green light may turn off during cooking and cycle on/off to maintain temperature. Cook for 3-6 minutes, or until golden brown and cheese is melted.

The appliance with sandwich plates, preparing two grilled cheese sandwiches.
- For Waffles: Pour waffle batter onto the center of the preheated waffle plates. Close the lid. Cook for 4-8 minutes, or until waffles are golden brown and crispy. Cooking time may vary based on batter consistency and desired crispness.

The appliance with waffle plates, cooking two golden-brown waffles.
- For Grilling (Paninis, etc.): Place your food (e.g., panini, vegetables, meat) onto the preheated grill plates. Close the lid. Cook for the desired time, checking periodically for doneness. The adjustable thermostat allows for precise control over grilling.

The appliance with grill plates, pressing a panini sandwich.
- For Sandwiches (Croques): Place your prepared sandwiches onto the preheated sandwich plates. Close the lid. The green light may turn off during cooking and cycle on/off to maintain temperature. Cook for 3-6 minutes, or until golden brown and cheese is melted.
- Removing Food: Use heat-resistant wooden or silicone utensils to remove food from the plates. Do not use metal utensils, as they can damage the non-stick coating.
- Power Off: Once cooking is complete, unplug the appliance from the wall outlet.
Care and Maintenance
- Cool Down: Always unplug the appliance and allow it to cool completely before cleaning or changing plates.
- Cleaning Plates: The ceramic PFAS-free non-stick plates are removable and dishwasher-safe for easy cleaning. Alternatively, they can be washed by hand with warm, soapy water and a soft sponge. Ensure all food residues are removed.

The interchangeable plates of the DOMO DO9278C placed in a dishwasher for cleaning.
- Cleaning Exterior: Wipe the exterior of the appliance with a damp cloth. Do not use abrasive cleaners or scouring pads, as they may damage the finish. Never immerse the main unit in water or any other liquid.
- Storage: Store the appliance in a dry, clean place. Use the cord rewind function to keep the power cord tidy.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on. | Not plugged in; power outlet malfunction. | Ensure the appliance is securely plugged into a working outlet. Check the circuit breaker. |
| Food sticks to plates. | Plates not greased; excessive sugar in batter (for waffles); plates not preheated enough. | Lightly grease plates before use. Ensure plates are fully preheated (green light on). Reduce sugar in waffle batter if necessary. |
| Uneven cooking. | Food not evenly distributed; appliance not fully preheated. | Distribute food evenly across the plates. Allow the appliance to fully preheat until the green "Ready" light illuminates. |
| Smoke or odor during first use. | Manufacturing residues burning off. | This is normal. Ensure good ventilation. It should dissipate after the first few uses. |
Technical Specifications
- Model: DO9278C
- Brand: DOMO
- Power: 1100 Watts
- Special Features: 3-in-1 Function, Adjustable Thermostat, Non-stick Coating (PFAS-free ceramic), Removable Plates, Dishwasher Safe Plates, Indicator Lights
- Material: Ceramic (plates)
- Color: Matte Black with Wood-look Handle
- Product Dimensions (D x W x H): 21.5 cm x 27.2 cm x 14.5 cm (approximately 8.5 in x 10.7 in x 5.7 in)
- Product Weight: 2.92 kg (approximately 6.44 lbs)
- Included Components: Grill plates, Croque (sandwich) plates, Waffle plates

Dimensions of the DOMO DO9278C multifunctional appliance.
Warranty and Support
This DOMO appliance comes with a limited warranty. Please refer to the warranty card included with your purchase for specific terms and conditions. The availability of spare parts in the EU is guaranteed for 1 year.
For technical support, service, or warranty claims, please contact your retailer or visit the official DOMO website for customer service information.