DCM1: AC complete, replaced 20x20x1 filter. Filter was dirty but homeowner was running fan on. Talked to homeowner and told him to run it in auto to prevent adding humidity into the home and to keeping filter clean longer. System is fully functional and operating within manufacturer specifications at this time. Refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions. Talked to homeowner about adding a line voltage monitor/surge protector he decided to wait at this time. Homeowner would like to be called an hour in advance by service expert.