A failed magnetron, capacitor, or diode often stops the unit from heating food. Without repair, the microwave becomes just a bulky timer and light.

Over-the-range models double as range hoods. If the fan motor fails, cooking odors and smoke linger in the kitchen.

Buttons or the touchscreen may stop responding. This prevents cycle selection and makes the unit unusable.

The cooktop light underneath can burn out or short. This reduces visibility while cooking.

Buzzing or popping sounds may indicate electrical faults or a failing magnetron. Ignoring this can lead to more costly breakdowns.

Prevent sparks and damage by only using approved dishes.

Wash or replace grease filters to maintain ventilation.

Prevent burnt-on food that can damage the cavity.