Error display MMU2 - all 5 LEDs flash red ... .(?)
I switch on the MK3S, the MMU2 started booting.
First the 5th LED flashes green, then the 4th and then the first LED - the left one.
The extruder motor is moving. The Idler too and is going to make clack, clack... .
The 2 other motors are always standing still.(!)
Then I want the selector to move - right button.
First LED 1, then LED 5, then LED 4 are flashing green - after that all 5 LEDs are flashing red.
The same happens when I press the middle button.
The "reset button" does not work either.
(When booting the MMU2, 2 red LEDs on the inside of the board will also start to light up.
Does anyone have an idea how I can get the MMU2 running again.
How can I test if the Pulley motor and the Selector motor still works.
RE: Error display MMU2 - all 5 LEDs flash red ... .(?)
This may be helpful. https://help.prusa3d.com/en/article/factory-reset-mmu2s_1920/
I too have added the MMU2 to my MK3S printer and am having difficulty getting the MMU2S to perform to my expectations, could be user error but of course I don't think so lol.
RE: Error display MMU2 - all 5 LEDs flash red ... .(?)
Thanks 1agkirk2 for the answer.
If it were only that simple. .
Reset is not possible.
Either the MMU2 doesn't react on it or I can't get it to the 2nd LED to unlock the erase function.
The MMU2 was or better is already connected and worked well.
From one time to the other I got these error messages.
I plugged in the electronic connections again and checked them.
RE: Error display MMU2 - all 5 LEDs flash red ... .(?)
As a last resort you might try reloading the latest version of the mk3S and mmu2s firmware, maybe something got corrupted.
There are several bugs in the the PRUSA firmware that I have noted; or at least seemed to be inconsistent with how I think it should work.
I am using the MMU2S as a single filament selector right now and even there it fails to retract a filament fully every 4-5 times. The MMU2S hardware is a work in progress!