Introduction
Thank you for choosing the Mayer 30L Electric Oven MMO30. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new electric oven. Please read this manual thoroughly before using the appliance and keep it for future reference.
The Mayer 30L Electric Oven is designed for versatile cooking, featuring temperature control up to 230°C, a 120-minute timer with a stay-on function, and various heating modes including top heat with rotisserie, and top and bottom heat with fan for even cooking.
Important Safety Instructions
WARNING: To reduce the risk of fire, electric shock, or injury, always follow these basic safety precautions.
- Read all instructions before using 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.
- 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.
- 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 place any of the following materials in the oven: paper, cardboard, plastic, or any other materials not specifically designed for oven use.
- 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 other 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.
Product Overview and Components
Familiarize yourself with the parts of your Mayer 30L Electric Oven MMO30.

Figure 1: Front view of the Mayer 30L Electric Oven MMO30, showing the glass door, control knobs, and interior rack.
- Temperature Control Knob: Adjusts oven temperature up to 230°C.
- Function Selector Knob: Selects heating modes (e.g., top heat, bottom heat, top and bottom heat with fan, rotisserie).
- Timer Knob: Sets cooking time up to 120 minutes or selects "Stay On" function.
- Power Indicator Light: Illuminates when the oven is operating.
- Glass Door: Transparent door for viewing cooking progress.
- Baking Rack: For placing baking pans or food directly.
- Baking Tray: For collecting drips or baking certain foods.
- Rotisserie Spit: For roasting whole chickens or other meats.
- Crumb Tray: Removable tray at the bottom for easy cleaning of crumbs.

Figure 2: The Mayer 30L Electric Oven MMO30 with a chicken on the rotisserie spit inside, demonstrating its rotisserie function.
Setup and First Use
- Unpacking: Carefully remove the oven and all accessories from the packaging. Keep packaging materials for future storage or transport if needed.
- Placement: Place the oven on a stable, heat-resistant, and level surface. Ensure there is adequate ventilation around the oven (at least 10-15 cm clearance on all sides and top) to prevent overheating. Do not place it near flammable materials or under cabinets.
- Cleaning: Before first use, wipe the interior and accessories (baking rack, tray, rotisserie spit) with a damp cloth and mild detergent. Dry thoroughly.
- First Burn-in:
- Plug the oven into a grounded electrical outlet.
- Set the temperature knob to 230°C.
- Set the function knob to "Top and Bottom Heat".
- Set the timer knob to "Stay On" or 15 minutes.
- Allow the oven to operate empty for about 10-15 minutes. This will burn off any manufacturing oils and odors. It is normal for some smoke and odor to be present during this process. Ensure the area is well-ventilated.
- After the burn-in, turn the timer to "OFF" and unplug the oven. Let it cool completely.
- Your oven is now ready for use.

Figure 3: The Mayer 30L Electric Oven MMO30 with its door open, showing the interior cavity, baking rack, and crumb tray.
Operating Instructions
This section details how to use the various functions of your electric oven.
Temperature Control
Turn the top knob (Temperature Control) to select the desired cooking temperature, ranging from 100°C to 230°C.
Function Selection
Turn the middle knob (Function Selector) to choose the heating mode:
- Top Heat: Ideal for browning or grilling.
- Bottom Heat: Suitable for baking items that require more heat from the bottom.
- Top and Bottom Heat: Standard baking mode for even cooking.
- Top and Bottom Heat with Fan (Convection): Circulates hot air for faster and more even cooking, ideal for roasting and baking.
- Rotisserie Function: Engages the rotisserie motor for roasting.
Timer Operation
Turn the bottom knob (Timer) to set the cooking time:
- Timer (up to 120 minutes): Turn the knob clockwise to set the desired cooking duration. The oven will automatically turn off and chime when the time expires.
- Stay On: Turn the knob counter-clockwise past the "OFF" position to "Stay On". The oven will remain on until manually turned off by rotating the timer knob back to "OFF".
Using the Rotisserie
The rotisserie function is perfect for roasting whole chickens or other meats, ensuring even browning and juicy results.
- Secure the food (e.g., chicken) onto the rotisserie spit using the forks provided. Ensure it is balanced.
- Insert the pointed end of the spit into the rotisserie drive socket on the right side of the oven interior.
- Rest the notched end of the spit onto the rotisserie support on the left side.
- Set the function knob to the rotisserie icon (often combined with top heat or top and bottom heat).
- Set the desired temperature and cooking time.
- Monitor cooking progress through the glass door.

Figure 4: Interior view of the Mayer 30L Electric Oven MMO30, highlighting the rotisserie spit and its mounting points.
Maintenance and Cleaning
Regular cleaning and maintenance will ensure the longevity and optimal performance of your oven.
- Always Unplug: Before cleaning, always unplug the oven from the power outlet and allow it to cool completely.
- Exterior Cleaning: Wipe the exterior surfaces with a damp cloth and mild detergent. Do not use abrasive cleaners or scouring pads, as they may scratch the finish.
- Interior Cleaning:
- Remove the baking rack, baking tray, and crumb tray. Wash them in warm, soapy water. Rinse and dry thoroughly.
- Wipe the interior walls with a damp cloth and mild detergent. For stubborn stains, a non-abrasive oven cleaner designed for conventional ovens can be used sparingly, following the product instructions. Ensure to wipe off all residue.
- Do not immerse the oven in water.
- Crumb Tray: The crumb tray should be cleaned regularly to prevent grease buildup and potential fire hazards. Slide it out from the bottom, empty crumbs, and wash with warm, soapy water.
- Glass Door: Clean the glass door with a glass cleaner or a damp cloth. Avoid harsh chemicals that could damage the seal.
- Storage: When not in use, store the oven in a clean, dry place.
Troubleshooting
If you encounter issues with your Mayer 30L Electric Oven MMO30, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven does not turn on. | Not plugged in; power outage; timer not set. | Ensure the oven is securely plugged into a working outlet. Check your household circuit breaker. Ensure the timer knob is set to a cooking time or "Stay On". |
| Food not cooking evenly. | Incorrect rack position; overcrowding; fan not engaged. | Adjust rack position for optimal heat distribution. Avoid overcrowding the oven. For more even cooking, use the convection (fan) function. |
| Smoke or unusual odor during operation. | First use burn-off; food spills; grease buildup. | During first use, this is normal. Ensure good ventilation. For subsequent uses, clean any food spills or grease buildup inside the oven and on the crumb tray. |
| Rotisserie not turning. | Not properly seated; function not selected. | Ensure the rotisserie spit is correctly inserted into the drive socket and resting on the support. Verify that the function knob is set to a rotisserie mode. |
If the problem persists after trying these solutions, please contact customer support.
Product Specifications
| Feature | Detail |
|---|---|
| Model | MMO30 |
| Brand | Mayer |
| Capacity | 30 Liters |
| Wattage | 1750 watts |
| Power Source | Corded Electric |
| Temperature Control | Up to 230°C |
| Timer | 120 Minutes with Stay On function |
| Control Type | Knob |
| Door Style | Dropdown Door |
| Product Dimensions (L x W x H) | 18.94 x 14.88 x 13.35 cm (approx. 14.9D x 18.9W x 13.3H cm) |
| Item Weight | 8.42 kg |
| Included Components | 1 x Electric Oven, Baking Rack, Baking Tray, Rotisserie Spit, Crumb Tray |

Figure 5: Diagram showing the approximate dimensions of the Mayer 30L Electric Oven MMO30.
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Mayer website. Keep your purchase receipt as proof of purchase for warranty claims.
For technical assistance or service inquiries, please contact Mayer customer service through their official channels.





