Every year I actually give my air conditioners a cleaning twice. That’s right, one time at the front end of the warm season, and then again at the end of the season. Why not just clean it once a year? Well, I like to keep on top of maintenance, because a dirty or inefficient machine makes for a messy output and high energy costs (and might end up getting an ac repair).
Plus, if at the end of the season the air conditioner is no longer working, I can find one on sale. Clearance happens at the end of the season, not at the beginning.
I start by shutting off the air conditioner and just unplugging it. Some people will cut off the breaker, but that’s not how I do it.
Next, I remove the rear exhaust and vacuum out the coils. It’s just like cleaning the back of the refrigerator. I get into the fins and coils, and then go about checking for any drainage issues.
Of course, I clean the filter out to make sure it works well. Then I dust the grille and the vents. It does not take too long, and makes me feel better about the quality of the air and the effectiveness of the air conditioner (thanks to miami air conditioning).