Ac clean and tune. Used refrigerant sniffer on indoor coil, no indications found of leak at this time. Cycled system. Checked and cleaned electrical compartment. Compressor and fan motor tested normal at this time. Used coil cleaner on condenser coil. Hooked up gauges and tested pressures and temps. Subcooling was 10. Indoor coil was 39. Temp split was 19. System operating normal at this time. Job complete. No indications that system lost charge since last visit. Job complete.