Ge Microwave: arcing

Professional Repair Guide

What is this symptom?

If you're experiencing arcing in your GE microwave, you may see visible sparks or electrical flashes inside the cavity, often accompanied by crackling sounds or a burning smell. This issue can arise with or without metal objects present and can indicate serious problems with the microwave's components. Prompt attention is essential to prevent further damage.

Urgency: Critical

Possible Causes

Damaged or contaminated waveguide cover

How to Identify: Burn marks or scorching on the waveguide cover, visible cracks or holes, arcing repeatedly in the same localized area regardless of food placement

Part: Waveguide cover (mica or plastic)

Faulty high‑voltage components (magnetron, diode, capacitor)

How to Identify: Arcing accompanied by burning smell, smoke, or failure to heat; symptoms persist after exterior causes ruled out

Part: Magnetron or high‑voltage diode

Preventive Maintenance

  • Regularly clean interior and waveguide cover: Build‑up of debris and grease that leads to arcing
    Frequency: weekly to monthly
  • Inspect interior paint/coating: Exposed metal surfaces that can cause arcing
    Frequency: monthly

Frequently Asked Questions

Why is my GE Microwave arcing?
Arcing can occur due to a damaged waveguide cover or faulty high-voltage components like the magnetron.
How do I fix GE Microwave arcing myself?
No DIY solutions are recommended for this issue, as it requires professional assessment.
How much does it cost to fix arcing?
Repair costs can vary widely based on the issue, so consult a technician for an accurate estimate.
When should I call a technician for arcing?
You should call a technician immediately if you notice arcing, as it indicates a critical issue.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

100%
DIY Success Rate Difficulty: DIY

Common Issues Reported by Users

  • Damaged magnetron (2 mentions)
  • Scorch marks on magnetron cover (2 mentions)

User Suggested Solutions

  1. Clean scorch marks on the magnetron cover

    Success rate: 50.0%

  2. Replace the damaged magnetron and clean the waveguide

    Success rate: 50.0%
Analysis based on 2 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Microwave had arcing from magnetron antenna to waveguide. I ...
  2. GE microwave arcing electricity

Community Discussions

arcing electricity

Cleaned scorch marks on the magnetron cover, which resolved the arcing issue.

DIY View on Reddit →

arcing noise from magnetron antenna

Replace the damaged magnetron and clean the waveguide; consider replacing the waveguide cover.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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