It is very important to store your portable air conditioning unit properly during the winter or any prolonged period that it is not in use. Leaving the unit in-situ after use for long periods can cause excessive dust and moisture to be collected, causing problems with the appliance.

Removing the moisture inside the portable air conditioner before storing it away is very important.  If moisture is allowed to remain inside the machine, mould could quickly develop and could cause a musty smell when you turn it on again. If this happens, it can be very expensive and time-consuming to clean the interior of the unit and so it is key that you dry the interior out before storage as it will save you both money and effort.

To properly store the unit away, firstly drain the unit by removing the bottom drain plug.  Then remove all moisture inside the unit by running it on the fan mode only at maximum level for several hours. Then unplug the air conditioner and wait for it to cool down. 

If possible, repack the unit in its original packaging or at least cover the air conditioner with a covering to protect it from dust, and place it in an upright position. Store it in a place without direct sunlight and with minimal fluctuations in the ambient temperature. A dry and cool place such as a storage room is perfect.

It is very important to remember that the portable air conditioner must always be kept upright; never place it on its sides or upside down as this will damage the air conditioner and, if left in these positions for prolonged period of time, your appliance will most likely be beyond repair.