Resolving heating issues in microwave ovens often involves repairing faults in the magnetron or high-voltage diode, which are essential for proper heating. Turntable malfunctions can disrupt even cooking, usually caused by problems with the motor, rollers, or coupler, while unresponsive control panels or faulty displays may need repairs to the keypad or control board. Proper door alignment and functional safety switches are crucial for safe microwave oven operation. Electrical problems, such as blown fuses, tripped circuits, or sparking from damaged wiring, require prompt attention. Unusual noises often point to motor, fan, or turntable issues, and burning odors or smoke may result from food debris, electrical problems, or failing components. Replacing internal fuses helps protect the microwave oven from power surges, and recalibrating the keypad and sensors ensures accurate temperature and humidity control, restoring optimal performance.