Perform maintenance on ghost customers ductless units. Both units fan Wheels were very dirty. Pointed this out to customer and suggested cleaning. Also suggested you be late. Both units were producing proper delta-t. Clean both units filters for customer. Talk to customer about surge protector, system cleanings, and u v lights. Customers also interested in getting units put in next door. Set up consultation for tomorrow. Sign customer backup for taps senior plan. Collected payment and signature and left. Customer happy.