One of the first things that you should learn when you are considering how to remove the stuck water in your evaporator coil is to get a special Evaporator Coil Cleaning Brush. This is something that you should use with care and with caution to prevent yourself from damaging the unit. If you use the wrong brush, the water can run down into the system and ruin it completely, leading to expensive repairs. Keep in mind, the brush should be used according to the manufacturer’s instructions as well as your own personal safety.
The brush should be left in the coil for a number of minutes before being discarded. You should avoid re-entering the coil during this process as well. The brush will be very thin, so it will be easier to get into the small nooks and crannies. Once the brush has been in place for the required amount of time it should be brushed off using a clean cloth or paper towel. If the brush does not work you can try a vacuum cleaner attachment, this will also have a tendency to work on a stick unit as long as the nozzle is designed for use with water. The brush should be turned off when you are finished with it.
A sticky unit is the last thing you want, if this has happened to you and is completely ruined. You do not want to risk cutting into the unit with the cleaning tool so you should always give it the benefit of the doubt. If you know how to remove the stuck water from an evaporator coil then I recommend you read more about how to do this.