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Check the cooling fluid level weekly. You can view and access the reservoir by opening the left rear panel. If the level is approaching the minimum limit then you must add more deionized water from the Barnstead dispenser in the chemistry lab.
1.) Use a 6mm allen key to remove both the vent plug and fill plug.
2.) Use the gooseneck refilling bottle to slowly add water into the fill plug up to the high mark. Do not overfill. Aeris does not need a lot of water.
3.) Replace the fill plug and vent plug. Replace the side panel. 
Error codes: Some error codes can be cleared by turning off and back on the front computer. Press the power button on the side of the screen, and then turn the key switch counterclockwise. Wait a minute and Press the power button to turn back on and then when prompted, turn the key switch.
Keyboard and mouse are wireless and run on batteries. If not working check the batteries and that the Bluetooth dongle is still in the Aeris, on the right hand side next to the network connections.