1. Introduction
Thank you for choosing the Haier 20L Mini Microwave Oven. This appliance is designed for convenient and efficient heating, defrosting, and cooking of various food items. With its compact design, dual knob controls, and 700W power, it's an ideal addition to any home kitchen. Please read this manual carefully before use to ensure safe and optimal operation.
2. Important Safety Instructions
When using electrical appliances, basic safety precautions should always be followed, including the following:
- Read all instructions before using the appliance.
- Do not operate the oven if the door or door seals are damaged.
- Do not heat liquids or other foods in sealed containers as they are liable to explode.
- Only use utensils that are suitable for use in microwave ovens.
- Do not attempt to operate this oven with the door open as this can result in harmful exposure to microwave energy.
- Do not allow children to use the oven without supervision.
- Ensure the appliance is properly grounded.
- Do not immerse the power cord, plug, or the appliance itself in water or other liquids.
- Always unplug the appliance when not in use and before cleaning.
- Do not block any ventilation openings.
3. Product Overview
3.1 Components
- Oven Cavity
- Glass Turntable
- Turntable Support Ring
- Door with Pull Handle
- Control Panel (Power/Function Knob, Time Knob)
- Ventilation Openings
3.2 Control Panel
The microwave features a simple dual-knob control system for ease of use:

Image: Control panel showing power and time adjustment knobs.
- Power/Function Knob: Used to select the desired microwave power level or function. This model offers 5 adjustable power levels.
- Time Knob: Used to set the cooking time, ranging from 0 to 35 minutes.

Image: Microwave with its convenient pull-handle door opening.
4. Setup
4.1 Unpacking
Carefully remove the microwave oven and all packing materials from the carton. Check the oven for any damage, such as dents or a misaligned door. Do not operate the oven if it is damaged.
4.2 Placement
- Place the 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 around the oven. Maintain a minimum clearance of 10 cm (4 inches) at the rear, 10 cm (4 inches) at the sides, and 30 cm (12 inches) above the oven for proper airflow.
- Do not place the oven near heat sources or in a damp environment.
4.3 Turntable Assembly
- Place the turntable support ring in the center of the oven cavity.
- Place the glass turntable securely on top of the support ring. Ensure it sits properly in the center drive.

Image: Details of the thickened glass turntable for uniform heating and heat dissipation vents.
4.4 Power Connection
- Ensure your power supply matches the voltage specified on the microwave (220V).
- Plug the microwave into a dedicated, properly grounded wall outlet.

Image: Available plug adapters for different regions (CN/US, AU, EU, UK).
5. Operating Instructions
The Haier 20L Mini Microwave Oven features simple mechanical controls for easy operation.
5.1 Basic Operation
- Place the food in a microwave-safe container on the glass turntable.
- Close the oven door firmly.
- Select Power Level: Turn the upper Power/Function knob to your desired power setting. The microwave offers 5 power levels.
- Set Cooking Time: Turn the lower Time knob to set the desired cooking duration (0-35 minutes). The oven will start automatically once the time is set.
- When the cooking time is complete, the oven will automatically turn off and a bell will sound.
- Carefully remove the food from the oven.
5.2 Power Levels and Uses
The 5 power levels allow for versatile cooking:

Image: Recommended uses for different power levels.
- 17% Low Heat: Ideal for softening butter or ice cream.
- 30% Medium-Low Heat: Suitable for defrosting meat or delicate foods.
- 55% Medium Heat: Good for steaming or stewing dishes.
- 80% Medium-High Heat: Recommended for cooking various ingredients.
- 100% High Heat: For rapid heating and boiling.

Image: The 700W high power and built-in rotating glass plate ensure uniform heating.
6. Maintenance and Cleaning
Regular cleaning and maintenance will ensure the longevity and efficient operation of your microwave oven.
6.1 Cleaning the Interior

Image: Easy-to-clean interior and detachable turntable.
- Oven Cavity: Wipe the interior surfaces with a damp cloth after each use. For stubborn stains, use a mild detergent or a microwave-safe cleaner. Avoid abrasive cleaners or scouring pads.
- Glass Turntable: The glass turntable is removable for easy cleaning. Wash it in warm, soapy water or in a dishwasher. Ensure it is completely dry before placing it back in the oven.
- Turntable Support Ring: Clean the support ring in warm, soapy water.
6.2 Cleaning the Exterior
- Wipe the exterior surfaces with a soft, damp cloth.
- Clean the control panel with a soft, damp cloth. Do not use abrasive cleaners or allow water to seep into the control panel area.
- Ensure the ventilation openings are free from dust and debris to maintain efficient airflow.
7. Troubleshooting
If you encounter any issues with your microwave oven, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven does not start | Power cord not plugged in; Door not closed properly; Fuse blown or circuit breaker tripped. | Ensure plug is firmly in outlet; Close door securely; Check household fuse or reset circuit breaker. |
| Food not heating | Door not closed properly; Incorrect power level or time set; Food not microwave-safe. | Close door securely; Adjust power level and time; Use microwave-safe cookware. |
| Turntable not rotating | Turntable not properly placed; Obstruction under turntable. | Ensure turntable is correctly seated on the support ring; Remove any obstructions. |
| Excessive noise | Turntable or support ring not correctly positioned; Foreign object in cavity. | Reposition turntable and support ring; Check for and remove any foreign objects. |
If the problem persists after trying these solutions, please contact customer support.
8. Specifications

Image: Product dimensions and specifications.
| Feature | Specification |
|---|---|
| Brand | Haier |
| Model | HW-M20T1W |
| Capacity | 20 Liters |
| Microwave Power | 700W (Operating range 600-900W) |
| Voltage | 220 V |
| Function | True Microwave |
| Control Method | Mechanical (Dual Knob) |
| Heating Method | Turntable Heating (360° uniform heating) |
| Door Opening Method | Side Pull Handle |
| Liquid Crystal Display | Without |
| Dimensions (L*W*H) | 451mm * 327mm * 258mm |
| 3C Certificate Number | 2024010714700767 |
9. User Tips
- For best results when defrosting, use the 30% power level and turn the food halfway through the defrosting process.
- Always use microwave-safe dishes. Metal containers or foil can cause arcing and damage the oven.
- Stir liquids and foods during heating to ensure even temperature distribution and prevent superheating.
- The 20L capacity is suitable for daily use by 2-4 people, accommodating common dinnerware.
10. Warranty and Support
This Haier microwave oven comes with a standard manufacturer's warranty. For specific warranty details, including duration and coverage, please refer to the warranty card included with your product or contact the seller directly.
For technical support, service, or spare parts, please contact the authorized service center or the retailer from whom you purchased the product. Please have your model number (HW-M20T1W) and purchase date ready when contacting support.





