This combination often works on Otis, Desert, and Dover elevators. Note that sometimes the “Close Door” button is just a placebo for impatient riders, so this trick may not work.

The simplest method is to double press the button, which works in Mitsubishi Electric. In other brands, such as Fujitec, pressing it five times works. Another method is to hold the “Open Door” button while pressing the floor button twice. [4] X Research source

However, understand that your firefighter friend is likely to be reluctant. Putting master keys in the hands of the public can be dangerous and possibly even illegal. Check the legality of having such a key in your area.

Buying keys is somewhat of a legal gray area. Check to see if it’s legal in your state before purchasing one. [11] X Research source However, to make sure the key you buy works on your elevator, you may need to do a little research. Look at the make and model of your elevator, which is usually listed inside the elevator. Use that information to find out what kind of key it takes.