Common Causes of Microwave Sparking

• Metal Objects: Accidentally leaving metal utensils, foil, or metal-trimmed dishes inside
• Damaged Waveguide Cover: The mica plate that covers the waveguide becomes dirty or damaged
• Faulty Turntable Components: Damaged or misaligned turntable support or motor
• Burnt Food Particles: Food debris creating electrical arcing

Safety Precautions

• Immediate Action: Stop the microwave immediately if sparking occurs
• Regular Inspection: Check for damage or debris before each use
• Proper Cleaning: Keep the interior clean and free from food residue

When to Call a Professional

Contact a qualified repair technician if:

• Sparking continues after cleaning
• You notice damage to the cavity walls
• The waveguide cover is damaged

Prevention Tips

• Use only microwave-safe containers
• Clean spills immediately after they occur
• Regularly inspect the microwave cavity
• Replace the waveguide cover if damaged

⚠️Warning: Never operate a sparking microwave as it can be dangerous and may cause fire or damage to the appliance.