Your unit is designed to perform with a minimum amount of user maintenance when installed and operated precisely as directed in the manual. You are, however, responsible for the required user maintenance described in the manual, specifically, regular cleaning of the condensor coil and fans. Also, you must take steps to protect the unit from sudden power surge. As with any sensitive electronic device, your Koolr cooling unit may be damaged by power surges or spikes, sudden interruptions or prolonged low-voltage conditions, which are not covered under our warranty. You must monitor your unit's performance on a daily basis. If there is an apparent problem or "Alarm" condition, you must disconnect the power supply to avoid potential damage to your wine collection. It is your responsibility to insure your wine, and to take all reasonable and necessary precautions to safeguard its condition. Please consult the manual for detailed instructions, to download see MANUALS.