# Tool Setter LED not functioning / lighting up

**URL:** https://forum.onefinitycnc.com/t/tool-setter-led-not-functioning-lighting-up/29893
**Category:** Tool Setter
**Created:** [December 10, 2024, 7:12pm UTC](https://forum.onefinitycnc.com/t/tool-setter-led-not-functioning-lighting-up/29893 "2024-12-10T19:12:34Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)
#### Post date: [December 10, 2024, 7:12pm UTC](https://forum.onefinitycnc.com/t/tool-setter-led-not-functioning-lighting-up/29893/1 "2024-12-10T19:12:34Z")

</div>

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.

[![](https://us1.discourse-cdn.com/flex022/uploads/onefinitycnc/original/3X/c/9/c914c9f6671b71107fde9c6002840e1c4413f94d.jpeg "Replacing the Onefinity CNC Eazy-Z Tool Setter Cap || Support") ](https://www.youtube.com/watch?v=82QG0EylCRo)

The replacement battery is a [CR2032](https://amzn.to/3ZPJhos?tag=benmyers-20)

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<div class="post-metadata">

### Author: ![HardtailSr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/hardtailsr/32/35326_2.png) [@HardtailSr](https://forum.onefinitycnc.com/u/HardtailSr)
#### Post date: [October 14, 2025, 9:28pm UTC](https://forum.onefinitycnc.com/t/tool-setter-led-not-functioning-lighting-up/29893/2 "2025-10-14T21:28:37Z")

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```auto
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?