The product cannot be discharged
① It cannot be output and the display screen does not light up when any key is pressed. Please contact the after-sales service.
② The backlight of the key and the display are on when the key was pressed, but there is not output in the corresponding area. Check whether the equipment connection is normal. If the connection is normal, check whether the alarm code is prompted to output the overload protection. Restart and try again after removing the responsibility.
③ Check whether the rated power of the electrical equipment is greater than the maximum limited power, and do not use if it exceeds the limited value.
Stop working during product use
① Check whether the power supply is too low, check the power of the display screen and confirm the alarm code. If the power is too low, please charge in time.
② Check whether the power supply has overload, high temperature, low temperature, short circuit and other abnormal conditions. Check the alarm code of the display screen. If there are corresponding abnormal conditions, please deal with them according to different alarms in the alarm table.
After-sales service
During the use of the product, the normal operation according to the user's manual can not eliminate the fault. Please contact the dealer in time and give clear feedback to the after-sales personnel: product model, purchase date, contact number and fault phenomenon.
① Product warranty period 1 year
The shelf life is calculated from the date of purchase by consumers. In order to determine the purchase date, consumers are requested to keep the purchase related bills and online purchase records.
② During the warranty period, the company shall undertake the obligation of free maintenance and parts replacement for defects caused by product process or materials and damage caused by non-human factors.
③ The following are not covered by the warranty.
• Dismantle and repair without permission of non-staff
• Product performance failure due to human factors
• Damage caused by natural disasters, lightning, accidents and other irresistible factors
• Appearance damage after use is not covered by warranty