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Is there a way to individually test the fans on UM S3? Should all 3 fans spin when restarting the printer?


tf73ky

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Posted · Is there a way to individually test the fans on UM S3? Should all 3 fans spin when restarting the printer?

I recently had a failed print, which accidentally filled up the fan bracket with PLA residue. After cleaning it up, the front fan doesn't seem to run at all. I swapped it to a brand new one, and still can't see it running. Is there a way to test it from the maintenance menu at all? We have old UM2s as well, and those machines did have the option. 

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    Posted · Is there a way to individually test the fans on UM S3? Should all 3 fans spin when restarting the printer?

    The front fan should run if at least one printcore is above 40-50 degC. If it doesn't and it is connected at the right place on the print head pcb, that pcb might have been damaged by the head flooding. In that case you best get in contact with your reseller.

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    Posted · Is there a way to individually test the fans on UM S3? Should all 3 fans spin when restarting the printer?
    21 hours ago, Dim3nsioneer said:

    The front fan should run if at least one printcore is above 40-50 degC. If it doesn't and it is connected at the right place on the print head pcb, that pcb might have been damaged by the head flooding. In that case you best get in contact with your reseller.

    Thank you. It doesn't want to kick in, so it must be a faulty print head pcb. I'm about to order a new PCB, but I noticed that there are 2 versions available. I guess these are not compatible with each other. Any clue why there are different variants? Thanks

    ultimaker print head pcb.png

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    Posted · Is there a way to individually test the fans on UM S3? Should all 3 fans spin when restarting the printer?

    The Ultimaker S3/S5 uses one version (the one with the bigger hole) and the UM3 uses the other version.

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