# Bad hot end? Snapmaker 2 **URL:** \ **Category:** Snapmaker 2.0 (3-in-1)\ **Created:** [January 1, 2021, 5:05pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760 "2021-01-01T17:05:46Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 1, 2021, 5:05pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/1 "2021-01-01T17:05:46Z")
Hello! I had a successful first print and decided to try a relatively big and long 56 hour print. After about 36 hours in, it stopped in the middle of the night. The screen was on and usable, but the bed and nozzle went to 0 c and I couldn’t increase the temp. The enclosure and modules turned off (no fan, no lights). When I rebooted it, everything came back on. I told it to go home and all the linear modules worked. The bed would heat. But, the nozzle would not go to temp and stays at 0 despite telling it to go to 200c. Is this a bad hot end? Any ideas what happened? Are there videos on replacing the hot end (I have a spare). How often should I expect to replace hot ends and is it possible to recover a print when a failure like this occurs? I have a spare hot end… how do I replace it? ---
**Author:** ![stefix](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/stefix/32/8616_2.png) [@stefix](https://forum.snapmaker.com/u/stefix)\ **Post date:** [January 1, 2021, 5:27pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/2 "2021-01-01T17:27:28Z")
Hi Mads0100, Tried a quick forumsearch on it: > **[Hot\_end\_replacing.mp4 (video)](https://drive.google.com/file/d/16lLntfp-3V-j48pP_-aeRtADg49mSnek/view)** > > Google Drive file. have a look in the connector of the hotend if all 4 pins are in place. Have fun ---
**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\ **Post date:** [January 3, 2021, 9:53am UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/3 "2021-01-03T09:53:14Z")
It is a bit tricky to run the job to its finish. You have to delete the lines in the gcode which are finished right now, expect the start gcode,- this means you have to meassure the very correct height of your model, delete the lines after the start gcode. The start gcode has to be modified, so that the print head could not crash into the model on the bed. If you share your gcode and your current height, i could help you to adjust. If you want to do so, please @xchrisd me so i get a email about 😉 ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 3, 2021, 2:09pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/4 "2021-01-03T14:09:31Z")
I’m pretty sure it’s a cable issue. I emailed support. Unfortunately I pulled up the print so I could try cnc while I wait for the parts. Thanks for the offer, I really appreciate it! ---
**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\ **Post date:** [January 3, 2021, 3:09pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/5 "2021-01-03T15:09:03Z")
One of the pins in the 4 pin connector from the snapmaker to the hot end fell out. This happens quasifrequently. If you example the connector closely you will confirm this, then you can locate the pin to re-insert it into the connector. ---
**Author:** ![oshiricohn](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/oshiricohn/32/12249_2.png) [@oshiricohn](https://forum.snapmaker.com/u/oshiricohn)\ **Post date:** [January 6, 2021, 3:39pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/6 "2021-01-06T15:39:56Z")
I’m having a problem with the thermistor falling out of its tube. This is on any of the heads I’ve used so far and the end result is overheating and clogging. ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 6, 2021, 5:43pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/7 "2021-01-06T17:43:04Z")
They told me to replace the hot end. I’m in the middle of a cnc print and I’ll try it after that. Thanks guys. Chris ---
**Author:** ![stefix](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/stefix/32/8616_2.png) [@stefix](https://forum.snapmaker.com/u/stefix)\ **Post date:** [January 6, 2021, 6:33pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/8 "2021-01-06T18:33:21Z")
I take some sewing silk and bind the the 4 cables a little bit together so it cant fall out ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 9, 2021, 8:10pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/9 "2021-01-09T20:10:16Z")
Definitely a bad hot end. Working a print right now. Lesson learned, it’s usually something simple. ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 18, 2021, 3:44pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/10 "2021-01-18T15:44:59Z")
> **[How to adjust the probe/proximity sensor in the 3D printing module?](https://support.snapmaker.com/hc/en-us/articles/360046839854-How-to-adjust-the-probe-proximity-sensor-in-the-3D-printing-module-)** > > Phenomenon > > The printing module hits or gouges the print sheet during calibration. > > >   > > Case 1 > > User needs to upgrade the latest firmware and software. > Download links > > https://forum.snapmaker.com/... Anyone tried this? Support sent me this to try next. They think my calibration sensor is off. I guess I’m tired of gouging boards; is there a way to test it without running the nozzle into the board? ---
**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\ **Post date:** [January 18, 2021, 3:49pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/11 "2021-01-18T15:49:24Z")
you could always remove the nozzle from the hotend i guess. but you will need to recalibrate when you thread it back in did you ever show us your assembly photos? not to sound like we think you are an amateur or something but honest to god it seems like 9/10 times its something installed wrong and was just working by chance. regarding the prox sensor, touch the nozzle down on the build plate, loosen the screw for the prox, slip a credit card under it then tighten it back up. ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 18, 2021, 4:33pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/12 "2021-01-18T16:33:34Z")
Hey moose, No worries. What should I take pictures of?Was there more to it than removing the screw and putting the new one in/replace the cable? Thanks! Chris ---
**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\ **Post date:** [January 18, 2021, 4:36pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/13 "2021-01-18T16:36:50Z")
It would be nice to see how your linear modules are mounted to the base and how the aluminum webbed platform is mounted to the heated bed for starters its amazing how many people mess that up, but not really, the instruction manual had a bad illustration in it which they revised digitally but the print versions still have. ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 18, 2021, 5:17pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/14 "2021-01-18T17:17:33Z")
Hey moose, I’m not home but here is the linear module. The bed is put on correctly. It printed perfectly till I had to replace the hot end. ![image](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/8/865681bf834d37e64bf95abed219c642e58d140f.jpeg) I’ll take a look at the hot end. ---
**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\ **Post date:** [January 18, 2021, 5:49pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/15 "2021-01-18T17:49:44Z")
yeah check out the hotend is seated right, and that the print module is mounted to the bracket proper as well, we’ve seen that happen before too ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 18, 2021, 6:34pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/16 "2021-01-18T18:34:00Z")
Here is the bed. I think it’s correct. ![image](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/9/93ae2a7c7ea9b0b1fe83cf7e7b138aade2be551d.jpeg) ---
**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\ **Post date:** [January 18, 2021, 6:35pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/17 "2021-01-18T18:35:37Z")
yessir that is the correct orientation ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 18, 2021, 6:41pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/18 "2021-01-18T18:41:19Z")
I really appreciate the help. I’m gonna check the hot end tonight and recalibrate the sensor. Hopefully my new beds will be here soon. ---
**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\ **Post date:** [January 18, 2021, 6:43pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/19 "2021-01-18T18:43:22Z")
You know going back to your original comments about the long print failing partway thru, this seems to be a repeating trend the past few days. i dont know the stats of the temps and so forth but out of curiousity id be interested to know how big the gcode file was and what version of firmware you have too ---
**Author:** ![Mads0100](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@Mads0100](https://forum.snapmaker.com/u/Mads0100)\ **Post date:** [January 18, 2021, 6:51pm UTC](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760/20 "2021-01-18T18:51:24Z")
30mb. I have 1.10.1 installed. [Next page](https://forum.snapmaker.com/t/bad-hot-end-snapmaker-2/13760.md?page=2)