Parts for Whirlpool WMH78519LV00: Interior And Ventilation Parts

Can't see inside your microwave? This light bulb restores visibility when the door opens or during cooking. Simple 5-minute DIY replacement fix.

Mounting bracket that secures the sensor assembly inside your microwave. Replace if the bracket is bent, broken, or missing to properly secure sensors.

Filters grease and particles from vented air in your microwave. Replace when clogged or damaged to maintain air quality. Confirm fit with your model.

Replacement lower cabinet base panel for microwaves. Restores bottom support and protects internal components. Needed when original is cracked or damaged.

Replacement interior reflector panel for microwave cavity. Needed when original is cracked, damaged, or missing. Installs behind waveguide cover.

Fix a microwave that won't start or run with the door closed. This door interlock switch assembly monitors the latch for safe operation. DIY-friendly.

Replacement holder for microwave ovens. Secures and positions internal components. Order a new holder if your original is cracked, broken, or missing.

Fix inconsistent heating or error codes with this microwave thermistor. This temperature sensor monitors internal conditions for proper operation.

Protective cover shield that guards internal microwave components from debris and contact. Replace when cracked, broken, or missing to restore safety.

Waveguide cover deflector for microwave ovens. Protects the magnetron antenna from food splatter and grease. Replace if cracked, burned, or damaged.

Mounting bracket secures your microwave to the cabinet or wall. Replace if bent, cracked, or missing to ensure safe, stable installation.

If your microwave is noisy or has weak ventilation, the fan wheel may be worn or unbalanced. This part restores proper airflow and quiet operation.

This high-voltage magnetron capacitor stores and supplies the large charge needed by a microwave's magnetron, helping the oven generate heat for cooking. Replace a failed capacitor to restore normal high-voltage operation. What it does:

• Stores DC high voltage required by the magnetron in the microwave high-voltage circuit
• Helps deliver the pulse of energy that allows the magnetron to produce microwave radiation for heating
• Common symptom: microwave runs but does not heat or has greatly reduced heating power
• Other possible signs: arcing, loud buzzing from the high-voltage area, or frequent blown fuses

• HIGH VOLTAGE HAZARD: Always unplug the appliance and discharge the high-voltage capacitor before handling—capacitors can hold a dangerous charge even when powered off.
• Use insulated tools and follow the appliance service manual.
• Inspect surrounding high-voltage components (diode, transformer) and replace any damaged parts per the service manual.

Microwave won't heat but hums loudly? The diode regulates power to the magnetron. Test with multimeter—reads one direction only. Moderate DIY repair.

Internal shield for microwave ovens. Covers and protects internal components. Replace if cracked, dented, rusted, or missing for proper operation.

Microwave won't heat or start? This thermal fuse cuts power when overheating occurs. Common fix for dead microwaves. Moderate DIY repair in 30-45 minutes.

Fix a noisy microwave or inconsistent cooling with this evaporator fan motor. Restores proper airflow through freezer and refrigerator compartments.

Microwave won't heat or has no power? A damaged fuse block can prevent electrical flow. This holder secures the fuse to restore safe operation.

Microwave has no power or won't heat? A blown thermal fuse is often the cause. This safety part protects against overheating. DIY repair in 30 minutes.