1. Introduction
Thank you for choosing the Simfer SK4604 20 Liter Digital Microwave Oven. This manual provides essential information for the safe installation, operation, and maintenance of your appliance. Please read these instructions carefully before using the microwave oven and keep them for future reference. Proper use will ensure optimal performance and extend the life of your product.
2. Important Safety Instructions
When using electrical appliances, basic safety precautions should be followed, including the following:
- 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. It is important not to tamper with the safety interlocks.
- 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.
- Liquids or other foods must not be heated in sealed containers since they are liable to explode.
- Only use 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 as they may explode, even after microwave heating has ended.
- The appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
- The microwave oven must be placed on a flat, stable surface.
- Do not use the oven for purposes other than heating food.
- Do not operate the microwave oven when empty.
3. Product Overview
The Simfer SK4604 is a 20-liter digital microwave oven designed for convenient and efficient food preparation. It features a sleek black finish and an intuitive control panel.

Figure 3.1: Front view of the Simfer SK4604 microwave oven, showing the digital display, control panel, and door handle.

Figure 3.2: Angled view of the Simfer SK4604 microwave oven, highlighting its compact design and control panel layout.

Figure 3.3: Interior view of the Simfer SK4604 microwave oven with the door open, showing the glass turntable and internal cavity.
Control Panel Features:
- Digital Display: Shows time, cooking settings, and indicators.
- Automatic Cooking Functions: Dedicated buttons for Potatoes, Popcorn, Pizza, Beverage, Reheat, and Dinner.
- Defrost Options: Buttons for Defrost by Time and Defrost by Weight.
- Power Level: Adjusts microwave power output.
- Clock/Kitchen Timer: Sets the time and functions as a timer.
- Number Buttons (1-9, 0): For inputting time and weight.
- Stop/Cancel: Stops cooking or clears settings.
- Start/+30 Seconds: Starts cooking or adds 30 seconds to cooking time.
4. Setup
- Unpacking: Carefully remove the microwave oven and all packing materials. Check the oven for any damage, such as dents or a misaligned door. Do not operate the oven if it is damaged.
- Placement: Place the microwave oven on a flat, stable surface that can support its weight and the heaviest food likely to be cooked in it. Ensure there is adequate ventilation space: at least 20 cm of space above the oven, 10 cm at the rear, and 5 cm on each side. Do not block any ventilation openings.
- Power Connection: Plug the power cord into a properly grounded electrical outlet. Ensure the voltage matches the specifications on the rating label of the oven.
- Turntable Installation: Place the roller ring in the center of the oven floor. Place the glass turntable on top of the roller ring, ensuring it sits securely.
5. Operating Instructions
5.1 Setting the Clock
- Press the Clock button once.
- Use the number buttons to enter the current time (e.g., 12:30).
- Press the Clock button again to confirm.
5.2 Basic Microwave Cooking
- Place food in a microwave-safe container on the glass turntable. Close the door.
- Use the number buttons to enter the desired cooking time (e.g., 2 minutes 30 seconds: press 2, 3, 0). The maximum cooking time is 99 minutes 99 seconds.
- Press the Power Level button repeatedly to select the desired power level (e.g., P100 for full power, P50 for 50% power). There are 10 adjustable power levels.
- Press the Start/+30 Seconds button to begin cooking.
5.3 Automatic Cooking Functions
The oven features 6 pre-set automatic cooking functions for common foods:
- Potatoes: For cooking potatoes.
- Popcorn: For popping popcorn.
- Pizza: For reheating or cooking pizza.
- Beverage: For heating beverages.
- Reheat: For reheating pre-cooked meals.
- Dinner: For heating dinner plates.
To use an automatic cooking function:
- Place the food in the oven.
- Press the corresponding automatic cooking button (e.g., Popcorn).
- The oven will automatically set the cooking time and power level.
- Press Start/+30 Seconds to begin.
5.4 Defrosting
The microwave offers two defrosting methods:
Defrost by Time:
- Press the Defrost by Time button.
- Use the number buttons to enter the desired defrosting time.
- Press Start/+30 Seconds to begin.
Defrost by Weight:
- Press the Defrost by Weight button.
- Use the number buttons to enter the weight of the food in grams.
- Press Start/+30 Seconds to begin. The oven will automatically calculate the defrosting time.
5.5 Kitchen Timer
- Press the Kitchen Timer button.
- Use the number buttons to set the desired countdown time.
- Press Start/+30 Seconds. The timer will count down without microwave operation. An alert will sound when the time expires.
5.6 Child Safety Lock
To prevent unsupervised operation, especially by children:
- To Activate: Press and hold the Stop/Cancel button for 3 seconds. A lock indicator will appear on the display.
- To Deactivate: Press and hold the Stop/Cancel button for 3 seconds again. The lock indicator will disappear.
6. Maintenance and Cleaning
Regular cleaning and maintenance will ensure the longevity and efficient operation of your microwave oven.
- Exterior: Wipe the exterior surface with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Interior: Clean the interior cavity after each use. Wipe with a damp cloth and mild detergent. For stubborn stains, place a bowl of water with lemon juice inside and microwave for 2-3 minutes to loosen residue, then wipe clean.
- Door and Seals: Keep the door seals and adjacent parts clean. Use a soft, damp cloth. Do not use harsh abrasive cleaners.
- Glass Turntable and Roller Ring: These can be washed in warm soapy water or in a dishwasher. Ensure they are completely dry before placing them back in the oven.
- Unplug Before Cleaning: Always unplug the microwave oven from the power outlet before cleaning.
7. Troubleshooting
If you encounter problems with your microwave oven, refer to the following table for common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven will not start | Power cord not securely plugged in. | Ensure the power cord is firmly plugged into the outlet. |
| Door is not closed properly. | Close the oven door securely. | |
| Child safety lock is activated. | Deactivate the child safety lock (refer to Section 5.6). | |
| No heating | Incorrect power level or cooking time set. | Check and adjust the power level and cooking time. |
| Faulty power outlet. | Test the outlet with another appliance. | |
| Light not working | Bulb needs replacement. | Contact qualified service personnel for bulb replacement. |
| Turntable not rotating | Turntable or roller ring not correctly positioned. | Ensure the turntable and roller ring are properly seated. |
| Obstruction under the turntable. | Remove any debris or food particles. |
If the problem persists after trying these solutions, please contact Simfer customer service or a qualified service technician.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Simfer |
| Model | SK4604 |
| Capacity | 20 Liters |
| Microwave Output Power | 700 W |
| Power Levels | 10 Adjustable Levels |
| Automatic Cooking Functions | 6 (Potatoes, Popcorn, Pizza, Beverage, Reheat, Dinner) |
| Defrost Feature | Yes (by Time and by Weight) |
| Child Safety Lock | Yes |
| Display Type | LED |
| Turntable Type | Rotating Glass Turntable |
| Product Dimensions (L x W x H) | 39.5 x 12.5 x 31.6 cm |
| Color | Black |
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or contact Simfer customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.





