I arrived at the home to find the system off. I got straight to work with checking over the system. I made sure to rinse out the condenser coil very well and also cleared the drain. I poured a gallon of hot water down the drain afterwards. I checked over the system and found everything to be in working order. The system is operating as best as it can for being 12 years old. The system has a piston, so I checked refrigerant by superheat and found it to be within range. System is in working order at completion of appointment.