I just got a timer for my aquarium lights from Candian Tire; but it doesn't seem to do anything
I set it according to directions, but I just noticed the last instruction "Make sure the manual override switch is set to ON"
There's no such switch on the timer itself, so where can I find this "manual override switch"?

There's no such switch on the timer itself, so where can I find this "manual override switch"?
