Upgraded from MK3S to MK3.9. Keeps failing self test.
 
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[Solved] Upgraded from MK3S to MK3.9. Keeps failing self test.  

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Vance
(@vance)
Active Member
Upgraded from MK3S to MK3.9. Keeps failing self test.

The thing that is listed as failed is the test of the hot end cooling fan. The fan works. It comes on when the hot end heats up over 45c. So I print a couple of models and they come out fine. Turned it off for the night and go in and turn it back on to print some more and it wants to do the self test again. Again the hot end cooling fan failed, but it works. This tells me that the control board does not sense it is working. Can I just tell the machine not to do the self test every time I turn it on> Is there a setting that will turn it off?

Posted : 11/11/2023 7:41 pm
Vance
(@vance)
Active Member
Topic starter answered:
RE: Upgraded from MK3S to MK3.9. Keeps failing self test.

Just so people know. It was a firmware bug. I upgraded the firmware to 5.1.0 Alpha 2 and now it passed the self-check and everything works.

Posted : 13/11/2023 2:07 pm
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