What happened?
Implausible SuperFINDA sensor reading. This error occurs when the SuperFINDA sensor detects filament inside the Selector, but the MMU has no record of any filament being loaded. As a result, it cannot determine which filament position is loaded and cannot automatically unload.
This often happens due to a malfunctioning or improperly calibrated SuperFINDA sensor.
Another potential cause could be the filament being inserted into the selector manually, bypassing the menu/buttons, or restarting the printer during a load/unload operation before it is completed.
How to fix it?
- Verify there is no filament in the Selector, and the SuperFINDA sensor isn’t detecting a filament.
- If the filament is loaded, unload it manually or clear any obstructions triggering the SuperFINDA sensor.
- On the MK3/S and MK3.5/S Re-calibrate the SuperFINDA sensor.
- See the FINDA troubleshooting article.
- Use only the printer menu to load or unload filament during regular use.
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10 comments
It seems that the UNLOAD MANUALLY state is an MMU3 override thing that turns my Core ONE printer into a boat anchor.
Unfortunately, this leaves my regular-flow hotend plugged and cold, and now I either have to bypass the MMU3 or maybe try to re-flash it and hope it gets out of the UNLOAD MANUALLY state.
I changed the hotend to an unblocked one. All filament is unload everywhere.
When I power up, the display is stuck on the UNLOAD MANUALLY message and I cannot get out of it, no matter what.
The state persists after doing a factory reset on the MMU.
I can't seem to do a factory reset on the Core ONE, either.
After reset, I can move around in the menu a bit, but no matter what, it always takes me back to the UNLOAD MANUALLY screen where I have no control.
How do I get out of this completely disabling state!!!
Why am I prevented from getting to a menu or to any other control setting so that I can try to fix this? Is this an intentional lock out?
I have removed filament as much as I can. I have turned off power to the printer so that I can at least lower the print bed so that I can access the hot end.
I can see that there is filament in the hot end tube, but the filament is completely unreachable.
Because I am locked out of menus and controls, I can't even heat the hotend up.
When I power up without the hotend installed, I am still locked into the "UNLOAD MANUALLY" screen with "RETRY" available, and when I push the knob or press the retry on the display, nothing happens. I seem to be completely locked out and the printer seems not to want me to try to fix anything.
Is this intentional?
What do I do to fix this?
Of course there is no filament in the FINDA, the ball moves freely, and frankly, not even sure how there could be any reading since the MMU has not even initialized.
Yet again the printer is telling me bullshit while the Prusa manual can't offer a single solution that remotely works. It is as if none of these processes were tested before unleashing them onto the customer.