# Lulzbot Taz 4: Hotend heats but doesn't stop when reaching set temp but reads temp

**URL:** <https://forum.lulzbot.com/t/lulzbot-taz-4-hotend-heats-but-doesnt-stop-when-reaching-set-temp-but-reads-temp/23678>\
**Category:** Hardware\
**Created:** [September 2, 2021, 6:17pm UTC](https://forum.lulzbot.com/t/lulzbot-taz-4-hotend-heats-but-doesnt-stop-when-reaching-set-temp-but-reads-temp/23678 "2021-09-02T18:17:42Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![jeremiahlandi](https://avatars.discourse-cdn.com/v4/letter/j/a9adbd/32.png) [@jeremiahlandi](https://forum.lulzbot.com/u/jeremiahlandi)\
**Post date:** [September 5, 2021, 8:52pm UTC](https://forum.lulzbot.com/t/lulzbot-taz-4-hotend-heats-but-doesnt-stop-when-reaching-set-temp-but-reads-temp/23678/4 "2021-09-05T20:52:16Z")

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@cdsmith That’s what I was assuming; I figured the flashing of the firmware would kick the issue but it didn’t.

I am wondering if there is a short in the board somewhere that is causing this; I’ll order a new board as well.

(edit-1) Looks like I may be just upgrading to the Archim2 at this point; same price as the Rambo 1.4 but more features. (shrug)

\*[What’s the best procedure for replacing the Rambo board?](https://forum.lulzbot.com/t/whats-the-best-procedure-for-replacing-the-rambo-board/5085)  
\*[32-bit ARM based controller??](https://forum.lulzbot.com/t/32-bit-arm-based-controller/6778/2)

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