# Melting Power Resistor

**URL:** <https://forum.lulzbot.com/t/melting-power-resistor/920>\
**Category:** LulzBot TAZ\
**Created:** [October 22, 2014, 4:58pm UTC](https://forum.lulzbot.com/t/melting-power-resistor/920 "2014-10-22T16:58:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jamestown](https://avatars.discourse-cdn.com/v4/letter/j/7cd45c/32.png) [@Jamestown](https://forum.lulzbot.com/u/Jamestown)\
**Post date:** [October 22, 2014, 4:58pm UTC](https://forum.lulzbot.com/t/melting-power-resistor/920/1 "2014-10-22T16:58:22Z")

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TAZ3, Budaschnozzle 2.0c with 0.35mm nozzle.

So I noticed that the coating on the stock power resistor has / has started to melt off under normal use.  
Is this cause for concern? Or is this totally normal and nothing to worry about?

![](http://i.imgur.com/q84YXh0.png)

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<div class="post-metadata">

**Author:** ![Orias](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/orias/32/3_2.png) [@Orias](https://forum.lulzbot.com/u/Orias)\
**Post date:** [October 22, 2014, 7:17pm UTC](https://forum.lulzbot.com/t/melting-power-resistor/920/2 "2014-10-22T19:17:06Z")

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It’s certainly not normal for that to be occurring. Have you applied the TAZ3 24v Marlin update with adjusted power settings for the hot end? More information can be found here: [https://www.lulzbot.com/marlin-24v-heater-resistor-update](https://www.lulzbot.com/marlin-24v-heater-resistor-update). If this heater resistor needs to be replaced we can send a replacement (looks like it does), please send in the following information:

- Order number

- 3D printer serial number

- Contact information

- Shipping information

Thanks!

Claudio