A washing machine is disclosed. The washing machine includes a pump that is configured to drain or circulate water and that comprises a motor that is configured to operate the pump. The washing machine further includes a motor driver that is configured to supply operation power to the motor. The washing machine further includes a motor controller that is configured to set a rotation speed of the motor and that is configured to supply, to the motor driver, a signal that controls the motor. The washing machine further includes a current sensor that is configured to measure a current supplied from the motor driver to the motor. The washing machine further includes a speed sensor. The washing machine further includes a water level sensor. The washing machine further includes a main controller that is configured to start or stop operation of the motor by supplying a control command.