<p>first, check the breakers 
<a href="https://i.sstatic.net/fpRGh.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/fpRGh.png" alt="enter image description here"></a>
<a href="https://www.germanreprap.com/myfactory/web/cms/produkt/100279.aspx" rel="nofollow noreferrer">pic source</a></p>

<h2>secondary stuff</h2>

<p>please see a list of item to check, that could point you to the source:</p>

<ol>
<li>heater cable cut/melted/loose => the best way will be to check the resistance (it shall be around 3.3 Ohms) from the heater cable terminals on the mainboard, if that fails it could be a wire on heater itself.</li>
<li>with the heating switch on - measure the voltage on terminals - shall be 12V, if not  - that  could suggest a mainboard failure or mosfet failure (in case of mosfet you could measure if there is an input signal given on the middle pin)</li>
<li>there also could be a breaker that was engaged due to short circuit on the wires (the main board layout is not known to me and it is not clear form manual I found online)</li>
</ol>

CC BY-SA 4.0
2018-05-29T12:57:00.947Z
2018-05-29T12:57:00.947Z
profesor79
<p>The printer stopped heating the extruder in the middle of the print and I noticed it getting cooled down. After a few seconds, I heard a ticking noise near the filament (which could probably mean the filament was being pushed into a cold extruder and was skipping. Now, when I try to heat the extruder, it won't heat up. What could've gone broken?</p>

<extruder><heat-management>
German RepRep Neo can't heat the extruder
A6EE
# German RepRep Neo can't heat the extruder

(Asked by: username_0 on 2018-05-29)

The printer stopped heating the extruder in the middle of the print and I noticed it getting cooled down. After a few seconds, I heard a ticking noise near the filament (which could probably mean the filament was being pushed into a cold extruder and was skipping. Now, when I try to heat the extruder, it won't heat up. What could've gone broken?

**Tags:** extruder, heat-management


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## 1 answers

### Answer by username_1 on 2018-05-29. Score: 1 | Accepted answer

first, check the breakers
[![enter image description here](https://i.sstatic.net/fpRGh.png)](https://i.sstatic.net/fpRGh.png)
[pic source](https://www.germanreprap.com/myfactory/web/cms/produkt/100279.aspx)

## secondary stuff

please see a list of item to check, that could point you to the source:

1. heater cable cut/melted/loose => the best way will be to check the resistance (it shall be around 3.3 Ohms) from the heater cable terminals on the mainboard, if that fails it could be a wire on heater itself.
2. with the heating switch on - measure the voltage on terminals - shall be 12V, if not - that could suggest a mainboard failure or mosfet failure (in case of mosfet you could measure if there is an input signal given on the middle pin)
3. there also could be a breaker that was engaged due to short circuit on the wires (the main board layout is not known to me and it is not clear form manual I found online)


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