Grundig
Overheating Component or Cavity Contamination
Microwave has a strong burning or electrical smell during or after operation.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Burning food residue on grill element, Overheating magnetron, Failing high-voltage transformer, Melted wiring insulation
How to Fix / Troubleshooting
Safety first: Unplug the microwave at the first sign of strong burning or electrical odor.
Step-by-step checks:
- 1. Inspect cavity: Look for burnt food, grease on the grill element, or spattered food on the cavity walls. Clean thoroughly.
- 2. Test with water only: After cleaning and cooling, run the microwave with a cup of water for 1–2 minutes. If the smell persists without food, suspect internal components.
- 3. Visual inspection: Remove the cabinet and look for discolored or melted wiring, especially near the transformer, magnetron, and grill element connections.
If any internal components show signs of overheating, discontinue use and have a technician replace the affected parts.
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Repair Difficulty
Hard
4/5
Required Part
High-Voltage Transformer
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