How do you defrost air conditioner coil?

To defrost an air conditioner coil, first turn off the unit and switch the thermostat to the "off" position. Allow the ice to melt naturally; you can speed up the process by using a fan to circulate warm air around the unit. Ensure the air filter is clean and the airflow is not obstructed, as poor airflow can lead to freezing in the future. Once defrosted, check for any underlying issues before restarting the unit.