tf73ky

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

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.