Manufacturer's name must be at least 4 symbols long.
Model's name must be at least 2 symbols long.
Energy efficiency rating must be between "A" and "E".
Power Usage must be a positive integer.
Invalid command
Power Usage must be a positive integer.
Air Conditioner model  LE666 from Midea registered successfully.
An entry for the given model already exists.
Invalid command
The specified entry does not exist.
Air Conditioner model  LE666 from Midea tested successfully.
