How to Maintain Your Portable Air Conditioner

Venting:  As mentioned above, portable air conditioners don't require permanent installation, but the condensed hot air must be vented out of the room via a venting kit (usually included). This allows the vent hose to be slid into a window, with the exhaust hose being fitted into the appropriate window space. In some situations where venting through a window isn't feasible, a portable AC can also be vented through a drop ceiling or wall. Although this method may require more work than if the unit was to be vented using a standard window kit, this will allow you to cool an area that lacks windows.

Draining the Water:  During the cooling process, your portable air conditioner acts like a dehumidifier because it removes water from the air. Most of this water is used to cool the actual AC and this results in better cooling efficiency. In fact, if you reside in an especially humid area, a good amount of water may be collected. However, this condensate must be removed, and portable air conditioners use various methods to accomplish this task.

Basic portable ACs will collect condensate in buckets which need to be emptied, but more advanced room air conditioners have the ability to evaporate more of this moisture, therefore resulting in less or even no water to be emptied. Furthermore, most portable air conditioners can support the connection of a drain hose that allows water to be drained continuously, and there are even condensate pumps available which pump the water outside or into a drain pump located indoors.

Cleaning/Replacing the Filters:  Portable air conditioners usually make use of some sort of air filter to eliminate airborne particles, and some advanced units may even come with built-in air purifiers complete with carbon filters and ionizers. Therefore, for effective particle abatement and optimal cooling efficiency, regularly clean or replace the filters in your portable AC. This should occur on a bi-weekly or monthly basis (depending on use).

If your portable air conditioner has a washable filter, slide the filter out, immerse it in warm water with a mild detergent, rinse thoroughly, and let it dry before replacing it back into the unit. On the other hand, if you have a portable air conditioner with a carbon filter, replace this according to the manufacturer's instructions. 

Cleaning the AC Exterior:  A clean portable air conditioner will result in increased air volume, so the actual housing of the unit should be cleaned every few weeks. Wipe the surface of the unit with a soft, damp cloth when the unit is turned off, and don't use abrasive chemicals or detergents. Furthermore, try to keep the portable AC away from direct sunlight because this can change the color of the unit's surface.

Storing the AC at the End of the Season:  Once the cooler months arrive, don't forget to properly store your portable air conditioner as this will both promote cooling efficiency and prolong the life of the unit. Store your AC by turning off and unplugging the unit, draining all water from the water tank, and turn on the fan mode. After letting the interior dry for a few hours, clean the filter as outlined above, wrap the cord around the cord hooks, pack the unit in the original carton, and store it in a dry location. Keep in mind that even if your portable air conditioner also includes a built-in heater function and can be used year-round, it should be maintained as you would any other type of AC.