1. Setup and Installation
This product is a replacement membrane switch control panel for compatible Panasonic microwave ovens. Installation requires careful handling and basic technical knowledge. It is recommended that installation be performed by a qualified technician or an individual with experience in appliance repair.
Safety Precautions:
- ALWAYS disconnect the microwave oven from the power supply before attempting any installation or repair. Failure to do so can result in electric shock or serious injury.
- Wear appropriate personal protective equipment, such as gloves, to prevent injury.
- Ensure the work area is clean, dry, and well-lit.
Installation Steps (General Guide):
- Power Disconnection: Unplug the microwave oven from the wall outlet.
- Access Panel: Carefully locate and remove the outer casing or control panel housing of your microwave oven to access the existing membrane switch. This may involve removing screws or clips.
- Disconnect Old Panel: Gently disconnect the flexible ribbon cable of the old control panel from its connector on the microwave's main circuit board. Note the orientation of the cable.
- Remove Old Panel: Detach the old membrane switch panel from its mounting location.
- Install New Panel: Position the new NN-GT353M control panel in the designated area.
- Connect New Panel: Carefully insert the flexible ribbon cable of the new panel into the corresponding connector on the circuit board, ensuring correct orientation and a secure fit. Do not force the cable.
- Reassemble: Reattach the control panel housing and outer casing of the microwave oven. Ensure all screws and clips are securely fastened.
- Test: Plug the microwave oven back into the power supply and test all functions of the new control panel.

2. Operating Instructions
The NN-GT353M control panel provides various functions for operating your Panasonic microwave oven. Refer to the detailed button layout below for specific functions.

Control Panel Functions:
| Button Label (English) | Function |
|---|---|
| Micro Power | Selects microwave cooking power level. |
| Grill | Activates the grill function. |
| Combination | Selects combination cooking modes (e.g., microwave + grill). |
| 10 min | Adds 10 minutes to cooking time. |
| 1 min | Adds 1 minute to cooking time. |
| 10 sec | Adds 10 seconds to cooking time. |
| Smart Defrost (1.0kg, 0.1kg) | Initiates defrosting based on weight (1.0 kg or 0.1 kg presets). |
| Auto Reheat | Automatically reheats food. |
| Steam Fish | Preset for steaming fish. |
| Steam Pumpkin | Preset for steaming pumpkin. |
| Steam Rice | Preset for steaming rice. |
| Vegetables | Preset for cooking vegetables. |
| Shrimps | Preset for cooking shrimps. |
| Fried Rice | Preset for cooking fried rice. |
| Dumpling | Preset for cooking dumplings. |
| Fungus | Preset for cooking fungus. |
| Soup | Preset for cooking soup. |
| Roast Wings | Preset for roasting chicken wings. |
| Toast | Preset for toasting. |
| Roast Batata | Preset for roasting sweet potatoes (batata). |
| Stop/Reset | Stops current operation or clears settings. |
| Start | Begins cooking or selected function. |
3. Maintenance
The NN-GT353M membrane switch control panel requires minimal maintenance to ensure its longevity and proper function.
Cleaning:
- Power Off: Always ensure the microwave oven is unplugged before cleaning the control panel.
- Gentle Cleaning: Use a soft, damp cloth with a mild, non-abrasive cleaner to wipe the surface of the control panel.
- Avoid Harsh Chemicals: Do not use harsh chemicals, abrasive pads, or spray cleaners directly onto the panel, as these can damage the membrane surface or internal components.
- Dry Thoroughly: After cleaning, wipe the panel dry with a clean, soft cloth.
General Care:
- Avoid pressing buttons with sharp objects, which can puncture the membrane.
- Protect the panel from excessive heat or direct sunlight, which can degrade the material over time.
4. Troubleshooting
If you experience issues with your NN-GT353M control panel, consider the following troubleshooting steps:
Common Issues and Solutions:
- Panel is unresponsive or specific buttons do not work:
- Check Power: Ensure the microwave oven is properly plugged into a working electrical outlet.
- Power Cycle: Unplug the microwave oven for 5-10 minutes, then plug it back in. This can sometimes reset the internal electronics.
- Check Ribbon Cable Connection: If you recently installed the panel, ensure the flexible ribbon cable is securely and correctly seated in its connector on the main circuit board. A loose or improperly inserted cable can cause unresponsiveness. (Refer to Installation Steps).
- Inspect for Damage: Visually inspect the panel for any visible damage, such as punctures or tears in the membrane, which could affect functionality.
- Display is blank or flickering:
- Power Cycle: Perform a power cycle as described above.
- Check Connections: Verify the ribbon cable connection.
- Internal Issue: If the issue persists, it may indicate a problem with the microwave oven's internal electronics rather than the control panel itself.
If these steps do not resolve the issue, it is recommended to consult a professional appliance repair technician.
5. Specifications
| Feature | Detail |
|---|---|
| Model Number | NN-GT353M |
| Type | Microwave Oven Parts (Membrane Switch Control Panel) |
| Compatibility | Designed for Panasonic microwave ovens (specific models may vary, verify with NN-GT353M). |
| Dimensions (Approx.) | Width: 9.7 cm, Height: 24.3 cm |
| Origin | Mainland China |
| Package Dimensions (Approx.) | Length: 35 cm, Width: 15 cm, Height: 5 cm |
| Package Weight (Approx.) | 0.1 kg |
6. User Tips
No specific user tips were available from reviews or Q&A for this product. However, general advice for installing replacement electronic components includes:
- Document Disassembly: Take photos or videos during the disassembly process of your old panel. This can be invaluable for reassembly.
- Handle with Care: The flexible ribbon cable is delicate. Avoid bending it sharply or applying excessive force during connection.
- Verify Compatibility: Double-check that the model number NN-GT353M matches your microwave oven's original panel before purchase and installation.
7. Warranty and Support
Specific warranty terms for this replacement part may vary depending on the seller and region. Please refer to the purchase documentation or contact your seller directly for detailed warranty information.
Customer Support:
For any questions regarding the installation, functionality, or compatibility of the NN-GT353M control panel, please contact the seller or the store from which you purchased the product. Provide your order details and a clear description of your inquiry for efficient assistance.





