Duplicator i3 plus problem

I have a problem with my i3 plus. After I changed my new spool of filament the prints jam at around 20 percent. The filament is exactly the same as I used to use just a different colour. Now I can't even unload or get the filament to go though the extruder. Can someone help me out on how I can't fix this please and what went wrong?

+1
0
-1

By 20 percent I mean that the print carries on going but it stops extruding because of a jam or something. I've never had this problem before

Not the answer you’re looking for? Ask a new question to 2 I3D experts active on Talk.

The 3D Printing Handbook is available now

If you’re a professional looking to master the key aspects of 3D printing, this book is for you.

The 3D printing handbook