When it comes to spring HVAC prep, most homeowners think about air filters and thermostat settings—but evaporator coils are just as critical. During a professional AC service in Wallace, NC, one of the most important steps is inspecting and cleaning these coils. Located inside your indoor unit, evaporator coils play an important role in your AC system’s functionality. When they’re clean and functioning properly, your system cools efficiently and keeps energy costs in check. When they’re not, problems can escalate quickly.