Arrived in Smithville for AC Repair, Upon my arrival I evaluated 1 straight cool furnace system. I verified system safety and performance is to manufacture specifications. Flushed and treated the water removal system. Cleaned the electrical cabinet and washed unit using water. Found the system was low on refrigerant and the voltage enhancement needs to be replaced. spoke with the customer about my recommendations and she approved HN13E. Return is scheduled 6/10/25 starting at 7:00am with customers approval.