Customer Questions and Answers for High-Voltage Diode Assembly (Microwave) by Ge

This high-voltage diode assembly rectifies high AC voltage to DC in your microwave's power circuit so the magnetron can generate heat. Replacing a failed diode can restore heating and eliminate symptoms tied to a shorted or open diode. What it does:

• Converts high AC voltage to DC for the magnetron
• Blocks reverse current to protect the high-voltage circuit
• Common failure symptoms include: runs but no heat, loud humming/buzzing, or a blown internal fuse/tripped breaker

• Unplug the appliance; the high-voltage capacitor can retain a dangerous charge—discharge it before servicing
• Match the diode's orientation/polarity to the original; diodes are polarized
• Reuse existing mounting hardware and ensure all connections are tight and insulated as designed