What does residential air conditioner maintenance include?

MAINTENANCE OF AIR CONDITIONING UNIT INSPECTION AND CHEMICAL CLEANING
Home maintenance includes:

1) Opening and cleaning the internal mask and filters
2) Cleaning the interior component from dust
3) Cleaning electrical & electronic parts
4) Chemical cleaning of internal components with antibacterial cleaner
5) Cleaning the internal fan impeller
6) Cleaning the condensate tank
7) Chemical cleaning of outdoor unit condenser
8) Pressure check and measurement of compressor and coolant operation.