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Hot end thermister broken?  

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Ed
 Ed
(@ed-12)
New Member
Hot end thermister broken?

Was changing nozzle and pinched the end of the hot end thermister wiring..  When Started up, I got mintemp error for the hot end.  Thought I damaged the thermister wiring, so ordered new thermister from Prusa. Installed and still get err mintemp for the hot end.  Could I have ruined the board?  Is there a reset on the board?  I know nothing about electronics. I need help. 

Posted : 14/07/2020 10:54 pm
Ed
 Ed
(@ed-12)
New Member
Topic starter answered:
RE: Hot end thermister broken?

Just took it out of the package.

Posted : 15/07/2020 5:47 am
Beeguy
(@beeguy)
Active Member
RE: Hot end thermister broken?

I just pulled the same exact stunt. 🙁 No one on chat. Need to know what the current board version is so I can try to find one since the shop is slow.

Posted : 17/07/2020 3:23 pm
Beeguy
(@beeguy)
Active Member
RE: Hot end thermister broken?

Bad news, Astounder. The main board fixed the problem. Use an Ohm meter to make sure your heating cart isn't shorted, and same for the thermistor. If you saw 'the light' Like I did, just change the main board, pain that it is.

Posted : 20/07/2020 10:33 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Hot end thermister broken?

@beeguy

Where did you get the Mainboard from so quickly, and which version was it!
Regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 21/07/2020 12:42 am
Beeguy
(@beeguy)
Active Member
RE: Hot end thermister broken?

@joantabb

Amazon (US) https://smile.amazon.com/gp/product/B07PPN1CTD/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

But my joy was short lived. It will not recognize the difference between a 4.0 and 3.0 IR Sensor, so while it WOULD work, it won't load filament correctly when fed from my MMU2. So back to waiting.

This post was modified 4 years ago by Beeguy
Posted : 21/07/2020 8:44 am
Ed
 Ed
(@ed-12)
New Member
Topic starter answered:
Re: Hot end thermistor

New board coming.  Chatted with Prusa, hope problem solved.  Excellent chat!

 

Posted : 21/07/2020 5:00 pm
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