Last updated: 2026-05-01
🛠️ Can you fix this?
Microwave Not Heating
Microwave runs but food stays cold
80% chance this is caused by:
Failed magnetron or blown thermal cutout
Fix it this weekend. Most parts ship same-day on Amazon.
A service call costs $150-300. This repair takes about 30-45 minutes and the part runs $55. Order the part tonight, fix it Saturday morning.
🔧 The Exact Part You Need
Total parts cost: $55. Same-day shipping available on most items.
Find the Right Part for Your Microwave
Parts vary by model. Search with your model number for the best match.
Tip: Add your model number (e.g. "GE GSS25GSH") for more precise results.
🔥 Parts for Microwaves move fast on Amazon — especially common failure parts like these.
🔨 Tools You'll Need
📋 Step-by-Step Instructions
UNPLUG the microwave — capacitor holds lethal charge
Discharge the capacitor with an insulated screwdriver across terminals
Remove outer cabinet screws
Test thermal cutout with multimeter — no continuity = blown
If thermal cutout is fine, test magnetron resistance
Replace the failed component
WARNING: If replacing magnetron, do not touch the ceramic insulator
Don't put this off.
A Microwave that's failing can cause water damage, electrical issues, or food spoilage — each costing 10x what the replacement part costs. The fix is straightforward. The part is cheap. The risk of waiting isn't.
Not comfortable with this repair?
This is rated as a hard repair. If you'd rather have a pro handle it, a service call typically costs $100-200 plus parts. For a major component, it may be worth the peace of mind.
Check what a professional would charge: See repair costs on FixrCost →
Other Microwave Problems
Related Resources
Frequently Asked Questions
How much does it cost to fix a microwave that's not heating?
How long does this microwave repair take?
What if this isn't the problem?
Should I just replace my microwave instead?
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