Как самому найти неисправность и починить микроволновую печь

Introduction

In this tutorial, we will guide you through the process of diagnosing and repairing a microwave oven. Many people discard their microwaves due to minor issues like sparks or discharges in the cooking chamber. By following these steps, you can identify and fix common problems, potentially saving you time and money.

Step 1: Gather Necessary Tools and Parts

Before starting any repair, ensure you have the right tools and replacement parts.

Tools Needed

• Screwdriver set (both Phillips and flathead)
• Multimeter (for electrical testing)
• Safety gloves
• Flashlight (for better visibility)

Parts to Consider

• Mica plate for microwaves (link to purchase)
• Magnetron caps (link to purchase)

Step 2: Safety First

Always prioritize safety when working with electrical appliances.

• Unplug the microwave from the power source to avoid electric shock.
• Wait for a few minutes to allow any residual charge to dissipate.
• Wear safety gloves to protect your hands from sharp components.

Step 3: Inspect the Microwave Externally

Begin by checking the exterior of the microwave for visible signs of damage.

• Look for cracks or dents on the casing.
• Inspect the door seal to ensure it closes properly, preventing microwave leakage.

Step 4: Open the Microwave

Carefully open the microwave to access internal components.

• Use a screwdriver to remove the screws securing the outer casing.
• Gently lift off the casing, taking care not to damage any internal parts.

Step 5: Check Internal Components

Once the microwave is open, visually inspect the internal components.

Key Areas to Inspect

• Mica Plate:
  • Ensure it is not burnt or damaged. Replace if necessary.
• Magnetron:
  • Check for any signs of wear or damage. Test with a multimeter for continuity.
• High Voltage Capacitor:
  • Caution is advised; discharge it properly before testing.

Step 6: Testing Electrical Components

Use a multimeter to test electrical components.

• Set the multimeter to the resistance setting.
• Test the magnetron and capacitor for continuity.
  • If they show no continuity, they may need replacement.

Step 7: Reassemble the Microwave

After identifying and fixing the issues, reassemble the microwave.

• Carefully place the outer casing back on and secure it with screws.
• Ensure all internal components are properly positioned and that no wires are pinched.

Step 8: Testing the Microwave

Before full use, it’s important to conduct a test.

• Plug the microwave back into the power source.
• Run a short test with a cup of water or a microwave-safe bowl to check functionality.

Conclusion

Repairing a microwave can be a straightforward task if you follow these steps carefully. Always prioritize safety and ensure you have the right tools and parts before starting. If you encounter complex issues or feel uncomfortable with electrical repairs, consider consulting a professional technician. By following this guide, you may extend the life of your microwave and avoid unnecessary expenses.