I am currently getting Error 54 and 52 on my Ultimaker S5 Pro Bundle. I believe PVA filament has broken up in to many pieces inside the material station manifold and at the entrance of the decoupler. My attempts to push through the material with a separate piece of PLA (as per the troubleshooting instructions) have failed. No matter how hard I try to push the PVA through with a line of PLA, the broken pieces inside the material station and in the decoupler cannot be moved. They are really stuck in there good.
With the instructions for error 54/52 not working, and the printer guide specifically saying not to try disassembling the material station or the decoupler, I am out of ideas. Could anyone point me in the right direction as to how to proceed from here?