Your AC Coils Could Be FILTHY... Here’s How to Clean Them Properly

Your air conditioner may look perfectly clean from the outside, but hidden inside, dust, dirt, pet hair, and debris can build up on the coils over time. In this video, we break down how AC coils get dirty, the warning signs worth watching for, and the proper approach to routine cleaning and maintenance. We’ll cover the difference between evaporator and condenser coils, why airflow matters, how clogged filters contribute to buildup, and common cleaning mistakes that can damage delicate coil fins or other components. You’ll also learn when basic homeowner maintenance may be appropriate — and when it’s safer to stop and call a qualified HVAC professional. A cleaner system can operate more effectively, but aggressive cleaning, incorrect chemicals, high-pressure water, or working around electrical components without proper precautions can cause expensive damage. Safety first: Turn off power according to the manufacturer’s instructions before performing permitted maintenance. Never open electrical compartments or service refrigerant components unless you are properly qualified. Always follow the manual for your specific AC system. Watch until the end for practical maintenance tips that can help keep your air conditioner clean and running properly. When was the last time YOUR AC was professionally serviced? Tell us in the comments!