Almost all frequent travelers have had hotel rooms that, whether as a function of architecture or insulation or something else, couldn't quite get hot or cold enough. Sometimes there's a window that gets light directly from mirrors installed on top of a building, which in turn get light directly from the rising sun (we had a hotel room in San Diego like that once; every morning it went from 'coastal chilly' to 'atmosphere of Mercury' in about 5 minutes). Other times there's a wind tunnel outside the window that channels in cold air. We've also seen thermostats placed next to air vents, that therefore totally screw up temperature readings. And so on.
Whatever the problem, you want to make the air conditioner/heater turn on and stay on. The problem is that many hotels lock down their units to a certain range of temperatures, which prevents hotel guests from really cranking them up or down. Others install motion sensors that make the unit turn off when there's no one in the room.
The solution, it turns out, is straightforward: hold down "display" and then press "off" and then "up." The combination puts the thermostat into VIP mode, which will turn off the motion sensors and disable the temperature limits. If that seems too complicated, here's a video showing how it works. Enjoy.
[Photo: rcslex / Youtube]