GE WB27X1160 Microwave Diode | Replaces AP4438388, WB27X10037, WB27X10330

Microwave High-Voltage Diode – GE

The high-voltage diode works with the capacitor to convert AC power to DC, doubling the voltage supplied to the magnetron for microwave generation. When it fails, the microwave runs but produces no heat, or it blows the fuse. This direct-replacement diode restores proper high-voltage circuit operation and heating.

Compatible Part Numbers

• WB27X1160
• AP4438388
• WB27X10037
• WB27X10330

Key Features

• Direct spec replacement – engineered to GE factory specifications
• Restores microwave heating – fixes microwaves that run but don't heat food
• Works with the capacitor – doubles voltage to the magnetron for proper operation
• Easy DIY installation – connects to existing high-voltage circuit terminals

Fixes These Symptoms

• Microwave running but not heating food
• Fuse blowing repeatedly
• High-voltage diode failed or shorted

Compatible Brands

• GE, Hotpoint, RCA, Kenmore

Always verify your model number before ordering. Check the label inside the microwave door to confirm compatibility. Caution: The high-voltage capacitor can retain a lethal charge even when unplugged. Discharge it before servicing.