Problem with printer firmware to any of the versions after 3.5.1
 
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Problem with printer firmware to any of the versions after 3.5.1  

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marcos.g3
(@marcos-g3)
New Member
Problem with printer firmware to any of the versions after 3.5.1

I hope you can solve a problem I have. I recently purchased a Prusa I3 MK3 printer (I have been with it for about 1 month), the problem is that when I upgrade the printer firmware to any of the versions after 3.5.1, when doing the Selftest I get an error in the fan of the extruder.
However, if I upgrade to the obsolete version 3.5.1 everything is fine.

I am looking forward to your response.

Thanks for everything

Respondido : 09/03/2019 8:35 pm
karl.w4
(@karl-w4)
Active Member
Re: Problem with printer firmware to any of the versions after 3.5.1

same here!

Respondido : 10/03/2019 1:29 am
RH_Dreambox
(@rh_dreambox)
Prominent Member
Re: Problem with printer firmware to any of the versions after 3.5.1

There is no problem with your fan, read carefully what is on the screen. You should confirm how the fans behave.
It looks bewildering, but it is a check that the fans are properly connected.

I made the same mistake and started debugging, but when I read what was on the screen I understood that it was just a new test function.
So just confirm how the fans behave.

Bear MK3 with Bondtech extruder

Respondido : 10/03/2019 12:31 pm
marcos.g3
(@marcos-g3)
New Member
Topic starter answered:
Re: Problem with printer firmware to any of the versions after 3.5.1

I Installed the last firmware (3.6.0) again and when I confirmed that the fan was spinning correctly, the selftest stopped and showed an error on the screen "Selftest error! Please check: Front/left fans Swapped".
I Checked the connexion of the fans and both are connected correctly. Please can you help me, what can I do? My printer is new (less than one month)

Thanks in advance

Respondido : 10/03/2019 9:40 pm
marcos.g3
(@marcos-g3)
New Member
Topic starter answered:
Re: Problem with printer firmware to any of the versions after 3.5.1

Sorry for the inconvenience, I did the self-test again and this time I read carefully what appears on the screen and you were right. The problem was me. Thanks again.

Respondido : 10/03/2019 10:11 pm
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