I get asked this question often – “Does our AC system have to be serviced yearly?”
A new installation may be able to be excused from yearly maintenance and service for a couple years but we are talking about mechanical systems with moving, spinning, expanding and contracting parts and pieces.
After seeing the photo that my service technician sent to me, it is ever so clear that yearly cleaning is imperative. Many people do not have the opportunity to get on their roofs to see what their equipment looks like, but there it is. I thought there was a piece of shipping cardboard on this particular coil, but it is a thick layer of pollen.
That is surely enough to stop your equipment from providing cooling to your space. If nothing else, take this post as an invitation to see what your equipment may look like.