HOW OFTEN SHOULD A/C COILS BE CLEANED?

When you schedule annual maintenance from a local Duncan air conditioning professional, a seasonal tune-up includes coil cleaning. Cleaning A/C coils twice a year—once in the spring and once in the fall—is ideal, though some units are fine with an annual cleaning. Your location and climate factor into optimal cleaning frequency. If you live in an area with high levels of pollution, dust or pollen, or if you have a large number of pets in the home, your system will likely benefit from being cleaned and inspected more frequently. A well-maintained A/C unit works more efficiently, consumes less energy and lasts longer overall. Your local Duncan air conditioning service company—Dial One Johnson Plumbing, Cooling and Heating—can take care of regular maintenance like changing air filters, checking refrigerant levels and cleaning air conditioning coils. Read on to learn more about A/C coils, how they work and how often they need to be cleaned.

source https://www.inspectorsjournal.com/topic/18945-how-often-should-ac-coils-be-cleaned/?do=findComment&comment=172921