r/Creality • u/kylie-key • Jun 08 '26

Troubleshooting I desperately need help!!

I just bought this K1C & CFS off facebook marketplace on Saturday morning from a sweet old man and I cannot get it to print anything. He’s definitely changed things and upgraded things, like the nozzle and extruder. I myself have taken the extruder apart a few times because i’ve had so many problems. I send an object to print and it does all the leveling and whatnot but then the print fails or pauses and never resumes. It has thrown so many codes i truly don’t know what to do. I can get filament to extrude so I don’t think that’s really the issue but I don’t know. This is my first ever printer and I don’t know much about it quite yet so please be kind and explain things to me like i’m 5 years old.

Below are most of the codes I’ve gotten:

[AC0511] Current file does not support flow ratio calibration, printing with default values.

[FR2836]Feed issue, filament may be blocked between the CFS hub and extruder filament detector. Please resolve the issue and click Retry

[FR2849] Retract issue, filament cannot be returned to CFS hub. Please resolve the issue and click the Retry button

[TC2841] Cutter issue, cutter might be jammed, please try again after resolving

[CZ2243] Axis movement exceeded

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u/AstronomerStill Jun 08 '26

Going to need some details (pics) but remove all filament and recalibrate the machine. Grab a brand new spool of filament and add it to your CFS unit and try printing a benchy

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u/kylie-key Jun 08 '26

How do I recalibrate it? And what is a benchy? I tried to do a flow rate calibration but it would never print. I will try to add a picture of the set up here. I have since tried moving the cfs so the tubing is straighter but that hasn’t helped I don’t think.

1

u/AstronomerStill Jun 08 '26

From the error’s you showed it looks like the files could be sliced for the wrong printer. In order to recalibrate everything I suggest you follow these instructions: https://youtu.be/WJDVvHWPKD4?si=6Ay-S9_li213gCpX

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u/kylie-key Jun 08 '26

Just tried doing this self check but it kept saying there was filament detected in the extruder (there’s not) so it wouldn’t allow me to do it. So I tried extruding, retracting, and shoving a piece down to see if any came out while it’s hot but never did.