1. Important Safety Information
WARNING: Microwave ovens contain high-voltage capacitors that can retain a lethal electrical charge even when the appliance is unplugged. Servicing should only be performed by qualified technicians. If you are not comfortable with electrical repairs, consult a professional.
- Always unplug the microwave oven from the power outlet before attempting any service or repair.
- Discharge the high-voltage capacitor before touching any internal components. Refer to your microwave's service manual for specific capacitor discharge procedures.
- Wear appropriate personal protective equipment, including insulated gloves and safety glasses.
- Do not operate the microwave oven with the outer casing removed or if the door interlock switches are bypassed.
- Ensure all connections are secure and properly insulated before restoring power.
2. Product Overview
This product is a replacement magnetron designed for specific Kenmore microwave oven models. The magnetron is a vacuum tube that generates the microwaves used for cooking.
Image 1: Generic Replacement Magnetron. This image shows the general appearance of the replacement magnetron unit.
3. Compatibility
This replacement magnetron is compatible with the following Kenmore microwave oven models:
- 721.85063010
- 721.85064010
- 721.85069010
- 721.86002010
- 721.86003010
- 721.86009010
- 721.87583610
- 721.87583611
- 721.87587610
- 721.88502800
- 721.88503800
- 721.88509800
Please verify your microwave's model number before proceeding with installation.
4. Tools Required
- Screwdrivers (Phillips and Flathead)
- Needle-nose pliers
- Insulated gloves
- Safety glasses
- Voltage meter with discharge probe (recommended for capacitor discharge)
5. Installation Instructions
Follow these steps carefully. If you are unsure at any point, seek professional assistance.
- Disconnect Power: Unplug the microwave oven from the wall outlet. This is a critical safety step.
- Access the Interior: Remove the outer casing of the microwave. This typically involves unscrewing several screws on the back and sides of the unit. Refer to your specific microwave model's service manual for exact casing removal procedures.
Image 2: Microwave with outer casing removed. This image would show a microwave oven with its metal outer shell detached, revealing the internal components.
- Discharge High-Voltage Capacitor: Locate the high-voltage capacitor. Using an insulated screwdriver or a specialized discharge tool, carefully discharge the capacitor. Touch the metal shaft of the screwdriver to both terminals of the capacitor simultaneously. You may hear a pop or see a spark. Repeat this several times to ensure a full discharge. Do not skip this step.
- Locate the Magnetron: The magnetron is usually a metal component with cooling fins, often located near the waveguide. It will have a high-voltage wire connected to it and may be secured by screws.
- Disconnect Wiring: Carefully disconnect the high-voltage wire and any other wires connected to the magnetron. Note their positions for reassembly.
- Remove Old Magnetron: Unscrew the mounting screws holding the old magnetron in place and carefully remove it from the microwave.
- Install New Magnetron: Position the new magnetron in the same location as the old one. Ensure it fits correctly and align the mounting holes. Secure it with the screws previously removed.
- Reconnect Wiring: Reconnect all wires to the new magnetron, ensuring they are securely attached and in their original positions. Double-check all connections.
- Reassemble Casing: Replace the outer casing of the microwave, ensuring all screws are tightened.
- Test Operation: Plug the microwave back into the power outlet. Perform a test by heating a cup of water for a short duration (e.g., 30 seconds). Observe if the water heats up and if there are any unusual noises or smells. If any issues arise, immediately unplug the unit and re-check your installation.
6. Troubleshooting
If the microwave does not operate correctly after magnetron replacement:
- No Power: Ensure the microwave is fully plugged in and the circuit breaker has not tripped.
- No Heating: Unplug the microwave and re-check all wiring connections to the magnetron and capacitor. Ensure the magnetron is seated correctly.
- Unusual Noises/Smells: Immediately unplug the unit. This could indicate a faulty component or incorrect installation. Do not attempt to operate the microwave.
- Door Interlock: Ensure the microwave door closes completely and the interlock switches are engaging properly.
If issues persist, it is recommended to consult a qualified appliance repair technician.
7. Specifications
- Manufacturer: Generic
- Product Dimensions: 1 x 1 x 1 inches (approximate, for the component itself)
- Item Model Number: 721.85063010 (primary reference, compatible with listed models)
- Included Components: Magnetron
8. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your purchase receipt for warranty claims.