Fuji Kiln Controller - LoC / Locked

If you find that you cannot run the program on your Fuji PXR3 kiln controller, it may be locked. You will know this is the case if the following happens. You will select PROG (program) on your controller. Then, like always, it will read OFF but you will be unable to use the arrow keys to select the desired program. Here is how to unlock it:

Press and hold SEL until you see PROG. Then arrow down twice until you see LoC. Press SEL again and a number will be displayed. It should be zero (unlocked). If it isn't zero, use the arrows to select zero and hit SEL again. After you hit SEL again, the display will again read LoC, but it will go back to displaying the current temperature within 15 to 30 seconds.