Introduction
Thank you for choosing the Franke FMW 250 CR2 BK Built-in Microwave Oven. This appliance is designed for efficient and convenient cooking, reheating, and defrosting. With a 25-liter capacity and 900W power, it offers versatile functionality for your kitchen. Please read this manual carefully before using the appliance to ensure safe and optimal operation. Keep this manual for future reference.

Image: Front view of the Franke FMW 250 CR2 BK Built-in Microwave Oven, showcasing its sleek design and control panel.
Important Safety Instructions
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, injury to persons, or exposure to excessive microwave energy.
- Read all instructions before using the appliance.
- Do not attempt to operate this oven with the door open as this can result in harmful exposure to microwave energy.
- Do not place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on sealing surfaces.
- Do not operate the oven if it is damaged. It is particularly important that the oven door closes properly and that there is no damage to the: (1) door (bent), (2) hinges and latches (broken or loosened), (3) door seals and sealing surfaces.
- The oven should not be adjusted or repaired by anyone except properly qualified service personnel.
- Do not heat liquids or other foods in sealed containers since they are liable to explode.
- Only allow children to use the oven without supervision when adequate instructions have been given so that the child is able to use the oven in a safe way and understands the hazards of improper use.
- Use only utensils that are suitable for use in microwave ovens.
- When heating food in plastic or paper containers, keep an eye on the oven due to the possibility of ignition.
- If smoke is observed, switch off or unplug the appliance and keep the door closed in order to stifle any flames.
- Microwave heating of beverages can result in delayed eruptive boiling, therefore care must be taken when handling the container.
- The contents of feeding bottles and baby food jars shall be stirred or shaken and the temperature checked before consumption, in order to avoid burns.
- Eggs in their shell and whole hard-boiled eggs should not be heated in microwave ovens since they may explode, even after microwave heating has ended.
- The appliance is intended to be used in household and similar applications such as: staff kitchen areas in shops, offices and other working environments; farm houses; by clients in hotels, motels and other residential type environments; bed and breakfast type environments.
Setup and Installation
This Franke FMW 250 CR2 BK microwave oven is designed for built-in installation. Ensure that the installation space meets the required dimensions for proper ventilation and operation.
Installation Requirements:
- Power Supply: 230 Volts, 900 Watts. Ensure the electrical outlet is properly grounded and can handle the appliance's power requirements.
- Ventilation: Adequate airflow around the appliance is crucial to prevent overheating. Do not block any ventilation openings.
- Cabinet Dimensions: Refer to the diagram below for precise cabinet opening dimensions.
Installation Steps:
- Prepare the cabinet opening according to the dimensions provided in the diagram. The minimum depth required for the cabinet is 500mm.
- Carefully slide the microwave oven into the prepared opening.
- Secure the oven to the cabinet using the provided screws, typically through mounting holes on the appliance frame.
- Ensure the appliance is level and stable.
- Plug the power cord into a grounded electrical outlet.
- Perform a test run to ensure proper functionality.

Image: Technical diagram illustrating the dimensions for built-in installation of the Franke FMW 250 CR2 BK microwave oven. Key dimensions include a minimum cabinet depth of 500mm, a microwave width of 595mm, height of 388mm, and a required cabinet opening width of 560mm and height of 380mm.
Operating Instructions
The Franke FMW 250 CR2 BK features an electronic programmer with a touch-sensitive digital display and 7 functions for versatile cooking.
Control Panel Overview:
The digital display shows time, power level, and selected functions. Touch controls allow for easy selection and adjustment.
Basic Microwave Cooking:
- Place food in a microwave-safe container inside the oven.
- Close the oven door securely.
- Select the desired power level (e.g., 900W for full power).
- Set the cooking time using the touch controls.
- Press the Start button to begin cooking.
- The oven will beep when cooking is complete.
Defrosting Function:
The appliance features automatic defrosting. Select the defrost function and input the weight of the food. The oven will automatically calculate the defrosting time and power level.
Grill Function:
This microwave includes a multi-function grill. To use the grill, place food on the microwave rack (if provided) or a suitable grill-safe dish. Select the grill function and set the desired cooking time. Monitor food closely to prevent overcooking.
Pre-set Recipes:
The oven comes with fully automated pre-set recipes. Consult the specific recipe guide (if included with your appliance) or the on-screen menu to select and activate these programs for various dishes.
Maintenance and Cleaning
Regular cleaning and maintenance will ensure the longevity and efficient operation of your microwave oven.
General Cleaning:
- Always unplug the appliance before cleaning.
- Clean the interior and exterior surfaces with a soft, damp cloth and mild detergent. Avoid abrasive cleaners or scouring pads.
- For stubborn food spills, place a bowl of water with lemon juice inside and microwave for a few minutes. The steam will loosen the residue, making it easier to wipe away.
- Clean the door seals and sealing surfaces regularly to ensure proper door closure.
- The turntable and support ring can be removed and washed in warm soapy water or a dishwasher.
Care Tips:
- Do not use metal utensils or containers in the microwave, as this can cause arcing and damage the oven.
- Avoid operating the microwave when empty, as this can damage the magnetron.
- Ensure food is properly covered to prevent splattering and keep the interior clean.
Troubleshooting
If you encounter issues with your microwave oven, refer to the following common problems and solutions before contacting service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven does not start |
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| Food not heating |
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| Sparking or arcing inside oven |
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| Oven light not working |
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Technical Specifications
| Feature | Detail |
|---|---|
| Brand Name | Franke |
| Model Information | 131.0391.304 |
| Product Dimensions (D x W x H) | 40 cm x 59.5 cm x 38.8 cm |
| Item Weight | 26 Kilograms |
| Capacity | 25 Liters |
| Installation Type | Built-in (Integrated) |
| Part Number | 131.0391.304 |
| Special Features | Multi-function Grill, Electronic Programmer, Digital Display, 7 Functions, Automatic Defrosting, Pre-set Recipes |
| Oven Cooking Mode | Microwave, Grill |
| Color | Black |
| Voltage | 230 Volts |
| Wattage | 900 Watts |
| Fuel Type | Electric |
| Defrosting Type | Automatic Defrost |
| Material Type | Crystal (Exterior), Stainless Steel (Interior) |
| Included Components | Microwave Rack |
| Batteries Included? | No |
| Batteries Required? | No |
| Recommended Uses | Reheating leftovers, defrosting frozen foods, melting ingredients, cooking quick snacks, preparing microwave-suitable meals and dishes. |
Warranty and Support
This Franke FMW 250 CR2 BK microwave oven comes with a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions, including coverage duration and what is covered.
Customer Support:
For technical assistance, service requests, or to inquire about replacement parts, please contact Franke customer support. Contact details can typically be found on the Franke official website or in your product documentation.
When contacting support, please have your model number (FMW 250 CR2 BK) and serial number (if applicable) ready.