The LED light not lighting up will never affect the tool setters ability to perform it’s job (its a simple mechanical switch).
Most likely, the batter is just dead and needs to be replaced.
Here’s a video showing how to open it up.
The replacement battery is a CR2032
ok 20 dollars for a simple cap replacment is bad enough but 9 dollars to ship it? i just sent a 1 lb packag to arizon from NC and it was only 7 dollars and to ake matters worse I figured well ill get 2 to defray the cost. Nope they charge you 19 dollars for shipping 2.WTF
ok 20 dollars US is bad enough for a simple tool setter replacement cap. but 9 dollars to ship it? I just sent a 1-pound package to Arizona from the east coast for 7 dollars.
So, I said to my self, “self I said”, I might as well get 2 to defray the shipping between 2 of them in case of future mishaps. NOPE! If they ship 2 the cost is now 19 dollars just for the shipping.(It’s cheaper to get one, twice). How much do these things weigh? WTF is going on here? 2 will fit in the same package and can’t weight more than what an ounce each? could someone at onefinity explain this?