📡 Microwave runs but does not heat

ModerateStep-by-step troubleshooting guide — 5 steps, Microwave, Moderate difficulty.

⚠️ Common Causes

Failed magnetron, high voltage diode failed, capacitor issue, HV fuse blown

🔧 Parts to Check

Magnetron
HV diode
HV capacitor
HV fuse

🔧 Troubleshooting Steps

WARNING: Microwave capacitors hold lethal voltage even when unplugged!
Test HV fuse: continuity test across both terminals
Test magnetron: check continuity between pins — should read 1-5Ω
Test HV diode: diode mode, should read 0.3-0.6V one way, OL the other
If not comfortable opening microwave, replace entire unit

💡 Related Resources

Look up error codes for your appliance
Component failure reference — ohm ranges and test procedures
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Find service manuals for your specific model