Once you've finished the job of cleaning your evaporator coils, it's essential to let the system dry before switching the air conditioner back on. If your air conditioner has reusable filters that you can wash, you can rinse them with warm water to get rid of any dust or debris that may have built up over time. However, it's important to allow these filters to dry completely before you can turn the air conditioner back on and use it. It can take up to 10 hours for these filters to be completely dry. Although some air conditioning service companies may suggest that you clean your air conditioner coils two or three times a year, most experts agree that once a year is enough.
This will give the vacuum enough time to do its job and remove all the dirt and grime that has accumulated on the coils.
