Cleaning your air conditioner regularly helps it cool more efficiently, improves air quality, and can lower electricity consumption. For a typical home split-type air conditioner: Clean the air filters: Every 2β4 weeks (more often if used daily or if you have pets). Professional cleaning: Every 6β12 months. If you use it heavily (8β12 hours a day), consider servicing every 3β6 months. Deep cleaning (chemical cleaning): Only if the unit has reduced cooling, unpleasant odors, water leaks, or heavy dirt buildup. Basic filter cleaning: Turn off and unplug the unit. Open the front panel and remove the filters. Vacuum or rinse them with clean water. Let them dry completely in the shade. Reinstall the filters and close the panel. If your air conditioner is still not cooling well after cleaning the filters, it may need professional servicing or inspection for issues such as low refrigerant, a dirty evaporator coil, or a clogged drain.