> For the complete documentation index, see [llms.txt](https://manual.rotrics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.rotrics.com/faq-troubleshooting/troubleshooting/3d-printing-module-wont-heat-up..md).

# 3D printing module won't heat up

The known reasons for the heating problem are:

### 1) The Temperature Sensor connection is unstable or the Sensor is short-circuited. 

Please visit our troubleshooting tutorial to fix it

{% embed url="<https://youtu.be/G1UYqM9W7YY>" %}

Or follow the instructions below to repair it:

If the plastic cover is broken or the wire touches the metal part, the sensor can't read the temperature. You can check it out by sending **`M105`**&#x69;n Terminal,  with this issue,  you should see a minus temperature value(usually -15 ℃) or see a MINTEMP message shown as the picture above. &#x20;

<div align="left"><img src="/files/-MCebhmlbP42GD69qhYG" alt=""></div>

To fix this:

#### A. Unscrew two hex screws with an Allen wrench.&#x20;

<div align="left"><img src="/files/-MCexKagoAgedrTDLOvj" alt=""></div>

#### B. Unscrew the temperature sensor.

<div align="left"><img src="/files/-MCezcZDCGN5FwmVuKrr" alt=""></div>

#### C. Make sure the cover is complete and then screw on the temperature sensor.&#x20;

<div align="left"><img src="/files/-MCezxBlyj5LsjttB5xV" alt=""></div>

#### D. Connect with Rotrics Studio and send `M109 S190` to test the heating.&#x20;

<div align="left"><img src="/files/-MCf-OPSEeAuYL4kMG1z" alt=""></div>

### 2) The heat stick wire is disconnected.&#x20;

<div align="left"><img src="/files/-MCfHaOrLHLTTzquH-z0" alt=""></div>

Temperature couldn't reach the target temperature after a few minutes. &#x20;

To fix this:

#### A. Unscrew two hex screws with an Allen wrench.&#x20;

<div align="left"><img src="/files/-MCexKagoAgedrTDLOvj" alt=""></div>

#### B. Split the heat stick connection cover.

<div align="left"><img src="/files/-MCf5NheehO_flK-JTQt" alt=""></div>

#### C. Solder the wires together and put on the covers.&#x20;

#### D. Connect with Rotrics Studio and send`M109 S190`to test the heating.&#x20;

<div align="left"><img src="/files/-MCf-OPSEeAuYL4kMG1z" alt=""></div>