Parts for Whirlpool MT4155SPT5: 05 - Oven Interior Parts

Fix a microwave that won't heat with this high voltage capacitor. Stores electrical charge to power the magnetron. Replace if heating has stopped.

Wire harness for microwaves. Connects internal electrical components. Replace if wires are frayed, damaged, or connections are loose or corroded.

The high voltage wire carries electrical current from the transformer to the magnetron inside the microwave. Replace it if the microwave doesn't heat food, sparks internally, or fails to start completely.

This replacement power cord restores the electrical connection to your appliance so it powers reliably. Designed as a direct-fit cord assembly to replace a damaged or worn lead and help restore normal operation. What it does:

• Provides the main AC connection between the appliance and your household outlet
• Replaces frayed, cut, or broken cords that can cause loss of power or intermittent operation
• Helps eliminate sparking or exposed wiring hazards from a damaged cord
• Restores safe, stable power delivery when the cord is the root cause of power issues

• Disconnect power at the breaker and unplug the appliance before starting any work
• Route and secure the cord per the appliance wiring diagram; avoid pinching or sharp bends
• Do not attempt to splice or modify the cord

This thermal safety device monitors temperature in your microwave and shuts off power if overheating occurs. It protects the magnetron and other components from damage due to excessive heat. Replace it if your microwave stops heating, runs but doesn't heat food, or shuts off unexpectedly.

Microwave not heating but still running? The magnetron controls heating function. DIY repair in under 2 hours with basic tools and multimeter testing.

Microwave won't turn on or has no power? A blown fuse is often the cause. This safety fuse protects circuits from shorts. Requires cover removal to replace.

Mounting screw for dryers, microwaves, refrigerators, and washers. Replace if screw is missing, stripped, corroded, or broken during disassembly.

Fastener screw