304. Troubleshooting Guide4.1. Trouble ShootingWhen the UPS malfunctions during operation, you may check the followings:a. Are the wirings of input and output correct?b. If the input voltage of the Utility is within the input window of the UPS?In case problems or symptoms still exist, please proceed the followings forproper adjustment. Should the problem persists, please contact your localdistributor for help.