<p>After replacing the control board, it now prints flawlessly. Apparently,I really did damage the control board...</p>

CC BY-SA 3.0
2017-06-25T00:32:03.403Z
Were you able to determine what failed on the controller board?
markshancock
CC BY-SA 3.0
2016-12-10T21:25:28.950Z
2016-12-10T21:25:28.950Z
jmontineri
<p>I just got my HICTOP Prusa i3 Aluminium frame printer and finished putting it together. After setting it to preheat, I realized the bed was not level - I adjusted it and accidentally caused the head to crash into the bed.</p>

<p>It sounded like something popped, and the printer restarted. It is now showing a <code>MINTEMP</code> error message, and both bed and hotend temperatures read 0°C.</p>

<p>The only visible damage is that a thin layer came off the printbed - After testing with a multimeter, I realized that the metal under this layer is connected to power. As both the bed and hotend were heating, I believe I may have caused a short.</p>

<p>Replacing the thermistor on the hotend with a spare did not solve the issue. I tested the thermistor on the printbed with a multimeter, and it seems to be working correctly (resistance value around ~200 k&Omega; at room temperature).</p>

<p>Which leads me to believe that I may have damaged the control board. What do I do?</p>

<p>Note: This is not a firmware problem as the printer was getting correct temperature readings before that. Also, I have a second extruder thermistor port that is unused. If I did damage my board, could I edit <code>pins.h</code> and <code>configuration.h</code> to use this port instead, and completely disconnect the heated printbed?</p>

<reprap><hotend><thermistor>
MINTEMP error after crash
jmontineri
# MINTEMP error after crash

(Asked by: username_0 on 2016-12-08)

I just got my HICTOP Prusa i3 Aluminium frame printer and finished putting it together. After setting it to preheat, I realized the bed was not level - I adjusted it and accidentally caused the head to crash into the bed.

It sounded like something popped, and the printer restarted. It is now showing a `MINTEMP` error message, and both bed and hotend temperatures read 0°C.

The only visible damage is that a thin layer came off the printbed - After testing with a multimeter, I realized that the metal under this layer is connected to power. As both the bed and hotend were heating, I believe I may have caused a short.

Replacing the thermistor on the hotend with a spare did not solve the issue. I tested the thermistor on the printbed with a multimeter, and it seems to be working correctly (resistance value around ~200 kΩ at room temperature).

Which leads me to believe that I may have damaged the control board. What do I do?

Note: This is not a firmware problem as the printer was getting correct temperature readings before that. Also, I have a second extruder thermistor port that is unused. If I did damage my board, could I edit `pins.h` and `configuration.h` to use this port instead, and completely disconnect the heated printbed?

**Tags:** reprap, hotend, thermistor

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## 1 answers

### Answer by username_0 on 2016-12-10. Score: 4 | Accepted answer

After replacing the control board, it now prints flawlessly. Apparently,I really did damage the control board...

> **Comments:**
> **username_1**: Were you able to determine what failed on the controller board?  

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