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[Solved] Newbie needs help! Can't even start the self-test  

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wealthychef
(@wealthychef)
New Member
Newbie needs help! Can't even start the self-test

I'm getting a message saying "Please check the IR sensor connection.  Unload filament if present." There is no filament loaded and the wires for the IR sensor seem plugged in to me.  How do I proceed to fix this error?  Thanks

Posted : 19/01/2022 10:00 pm
Diem
 Diem
(@diem)
Noble Member

First check: Disable the sensor temporarily (LCD menu) does it print now?

If so you probably have a bad connection or the outside chance of a failed component.

Cheerio,

Posted : 20/01/2022 1:55 am
wealthychef
(@wealthychef)
New Member
Topic starter answered:
RE: Newbie needs help! Can't even start the self-test

thanks for the suggestion.  The problem turned out to be a loose connector to the main board of the filament sensor.  

Posted : 20/01/2022 6:46 pm
KJ
 KJ
(@kj)
New Member
RE: Newbie needs help! Can't even start the self-test

I got the same issue here. Can you describe in more detail what the problem was? Didn't you connect the IR sensor on the mainboard properly or was something broken on the sensor itself? Thanks a lot!

Posted : 15/04/2022 3:17 pm
wealthychef
(@wealthychef)
New Member
Topic starter answered:
RE: Newbie needs help! Can't even start the self-test

In the end, it turned out that I had a bad motherboard.  I had to go through a troubleshooting process with a support person.  Took weeks to resolve.  

You can test it using this: https://help.prusa3d.com/en/article/p-i-n-d-a-superpinda-sensor-testing_2091  

I suggest you connect with the tech support at Prusa if you have checked the sensor and connections and all seems well.  From what I can see there is a QA problem at Prusa.  They need to test their kit equipment more thoroughly perhaps.  

I can say that once working, this is a very excellent printer.  Solid machine, good quality prints.  The assembly is a nightmare. 

Posted : 15/04/2022 5:05 pm
Diem
 Diem
(@diem)
Noble Member

It can be caused in several ways  First disable the sensor and test print.

Cheerio,

Posted : 15/04/2022 6:22 pm
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