Hello we have to brand of air conditioner in our office Mitsubishi and Toshiba. toshiba is recently installed in my office so I have been able to compare them both the area that Lake on Toshiba is Auto setting on the fan. I found it to be unable to function as it should be ( three unit installed) in my office. to maintained required temperature I need to set the fan at Max and then all were fine.experimenting with the various setting it seems that the unit for good to keep temperature stable and temperature during the night until there is about 5 degree Rise and we and dark uncomfortable.I have reset the units made sure the filter are clean all but no satisfaction. problem is still their