Samsung Microwave MR1032BB No heat

The Diode is an OEM part for Whirlpool microwaves. It plays a crucial role in the microwave's operation by allowing electrical current to flow in one direction, essential for converting AC power to DC power, which is necessary for the microwave's components to function correctly.

Over time, the diode can fail due to electrical surges, general wear and tear, or exposure to high heat. A bad diode can disrupt the microwave's ability to heat food properly, leading to inefficient performance or complete appliance failure.

Symptoms of a bad diode include:

• Microwave not heating
• Sparking or unusual noises during operation
• Burning smell from the microwave
•  Microwave shutting down shortly after starting

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

This door interlock microswitch detects when the microwave door is fully closed and allows the unit to run only under safe conditions. Replacing a worn switch restores reliable starting and consistent operation tied to the door latch.

• Monitors the door-latch position and completes the safety interlock circuit when the door is closed
• Helps prevent operation with the door open
• Common symptoms: microwave won't start or stops when the door is moved; requires pushing/jiggling the door to run
• Contributes to "runs but no heat" or light/fan behavior that changes as the door is opened/closed

• Unplug the microwave before service; internal high-voltage components can retain a dangerous charge
• Access the switch at the door-latch assembly; transfer wires one at a time to the new switch to maintain correct positions
• Ensure the actuator aligns with the door latch and that the switch clicks freely when opening/closing the door
• After reassembly, test with a microwave-safe cup of water to ensure proper operation