AC repair Simpsonville service calls often involve basic issues such as dirty filters, clogged condensate drains, electrical problems or airflow restrictions.(Image: https://insulationprosco.com/wp-content/uploads/2024/08/wall-insulation-service-img-2.jpg) A simple first step is to check the air filter and replace it if it is dirty.(Image: https://www.windsordoors.co.nz/wp-content/uploads/2024/09/Windsor-Insulation-Brochure.jpg)(Image: https://s3-media0.fl.yelpcdn.com/bphoto/e-VC75L6aC6lCjKimpBsxA/180s.jpg) It also helps to confirm that supply vents are open and that the outdoor unit has clear space around it so airflow is not blocked