The Intelligent CRF (Cleaning and Replacement Function) Alert can be used through all seasons to protect your air conditioning unit from damage. If you or someone in your family has allergy problems, keeping your air filter clean and replaced on timely basis can reduce the risk of triggering an allergy attack on any given day.An energy-saving mode, which gradually increases the temperature while you sleep. This slight, gradual increase in temperature, not affecting your comfort level, saves the energy consumption of the unit, and consequently lowers your power bill. Covering the expanse of the room, this function evenly cools or heats every part of the room by rotating/swinging the air deflector automatically.During unexpected power outages, this function retains the settings and temperature levels in its memory chip, enabling the air conditioner to restart with the previous function settings automatically when the power resumes.In case of any fault in the AC, this function will diagnose it immediately and turn the AC off to protect it. It also indicates protection or error code for fast service.