It doesn't activate intil the code is "right". The problem is its temporarily memory(latch memory), not permit memory. It saves the 3 coded memory whenever you left off on the "set" mode. The "activate" mode is when you confirm you code and see if you are right.
UPPER SPST SWITCH-----"SET" MODE | RED LED-------"SET" MODE
LOWER SPST SWITCH----"ACTIVATE" MODE | GREEN LED---"ACTIVATE" MODE
3 SPDT SWITCHES---------"0/1" x3 CODES INPUT | BLUE LED------CODE ACTIVATED
