Clippings on the Coil Fins
https://zukoski-group.chbe.illinois.edu/index/index.php/Getting_Your_AC_Ready_for_Summer_With_a_Comfort_Experts_Plan_to_Avoid_North_Fort_Worth_AC_Repair_Calls
Clippings on the Coil Fins Mower clippings were coating the side of our condenser that faces the lawn. Once I started mowing in a pattern that throws grass away from the unit, the coil stayed much cleaner