If the turntable on your Sharp microwave turns in both directions at random times, it could be due to a malfunction or an issue with the turntable motor or its control circuitry. Here are a few possible reasons for this behavior:
Motor or Gear Malfunction: The turntable motor or its gears may be worn out or damaged, causing it to operate inconsistently. When the motor or gears become faulty, the turntable may rotate in the wrong direction or exhibit irregular movement.
Control Circuitry Issue: The control circuitry that manages the turntable motor's operation could have a defect or malfunction. This can cause the motor to receive incorrect signals, leading to erratic movement.
Sensor or Switch Problem: Microwaves often have sensors or switches that detect the presence of food or the positioning of the turntable. If these components are faulty, they may send incorrect signals to the turntable motor, resulting in unpredictable movement.
Electrical or Wiring Problem: An electrical issue, such as a loose connection or a short circuit, could disrupt the normal functioning of the turntable motor. Inconsistent power supply or faulty wiring can cause the motor to rotate in different directions unexpectedly.
To resolve the issue, it is recommended to contact Sharp customer support or a qualified technician who can diagnose and repair the microwave. They will be able to identify the specific cause of the problem and perform the necessary repairs or part replacements to restore the turntable's normal operation.