To check the problem, please refer to the following details:
1. Confirm whether the dispenser is connected to the power supply. It is recommended to check whether the power cord plug is fully inserted into the grounded socket;
2. Confirm whether the product has a beep prompt sound after the power is turned on and whether the digital screen has a display. If there is a prompt sound but no display, the digital screen is faulty, please contact the local after-sales service center;
3. If there is no prompt sound and no display, the dispenser is faulty and does not power on, please contact the local after-sales service center.