what could be the potential reason Ultimaker S5 not printing when PVA is loaded into material bay F.

[MDRizki 0]

hi guys, I have been facing difficulty in printing PLA with PVA as support on extruder 2.

If extruder 1 is PLA and extruder 2 is PLA = no issues

If extruder 1 is PLA and extruder 2 is PVA = error message occurs
 

i have tried all the solution and when it came to switching bay from bay F to E it works fine.

so i'm curious what come be the problem at bay F.

[Dustin 130]

Sounds like the mergers in your Material Station might be jammed up.
A guide for resolving this can be found here: https://support.ultimaker.com/s/article/1667337954457

[alkekmakerspace 1]

I have dealt with jammed and broken PVA soooo many times. The worst scenario is when a piece breaks off in the path underneath the material station. I have cleared it twice by opening up the bottom, which is not difficult, just annoying because you have to remove the printer and put it upside down.

I later learned that most of these jams can be cleared by manually pushing a piece of filament through from the front. For your situation you could unplug everything, then manually push a piece of filament into bay F to push the broken piece of PVA out. When you get to the decoupler on the back, the small piece of pva can sometimes get stuck at the corner before it goes into it. Pulling that section of tubing out is nearly impossible, so you have to keep trying to get it to move through the decoupler.