Power On: Press the power button to turn on the unit. You should see indicators on the unit or hear a beep confirming it's powered on.

Select Mode: Press the mode button to cycle through the available options (cooling, heating, fan, dry) until you reach your desired mode. Choose cooling for lowering the room temperature, heating to make it warmer, dry to remove humidity, or fan for simple air circulation without temperature change.

Set Temperature: Use the temperature adjustment buttons (+/-) to set your preferred temperature. For a comfortable environment, 68°F to 72°F (20°C to 22°C) is recommended for heating, and 72°F to 78°F (22°C to 26°C) for cooling.

Adjust Fan Speed: Press the fan speed button to select your desired airflow. Options typically include low, medium, high, or auto. The auto setting is often the best choice, as it adjusts the fan speed based on the current room temperature and the set temperature.