Fatal Error: Predator overcurrent error! / Printer stops mid print - display freezes

Hi everyone I'm bringing to the table an error that for the life or me I can't figure out...yet.

I have two problematic Craftbot Plus printers a Gray one that has the v3.1 pcb and an Orange one with v2.0 pcb. What happens is they would randomly stop during printing. On the Gray one the display and touch will work just long enough for me to click either Pause or Stop Print and right after it would display the Fatal Error! Predator overcurrent error(please see bellow).
Fatal Error: Predator overcurrent error! / Printer stops mid print - display freezes

On the orange one the printer stops mid print and the display will freeze, nothing will work. I have to turn off the printer and on again. The error is very random, the machine would sometimes work for 2-3 weeks(or even more) and then the error would appear out of the blue. I would also like to mention that both machines are still in warranty and were sent to Crafunique. They did a few test prints on them of a few hours and concluded that the machines are fine and sent them back. The gray one had the mainboard replaced but it still gives the error.

The thing is that I can't re-create the error, it's very random and it will happen when you least expect it. To fix it I've tried almost everything I could think of, from different USB drives to even switching parts around to see if I can find the culprit. Last thing I did was to change the battery on the pcb and so far I got no error. I think it's been almost a month and no error on the Gray one. The Orange one is running with an older LCD I had lying around and so far no issues, it hasn't stopped mid print once. My last resort if it still gives the error is to change the cable running from the Display to the PCB.

Has anyone had this problem or run into something similar?

December 6, 2018

Paul Greucean Paul Greucean
2 posts

2 replies

Hi Paul,
long time ago you post this issue - i have the same problem right now.
I check google but can't find any solution.
Have you find one?

With kind regards

February 21, 2020

Bernd29 Bernd29
1 posts

Hi Bernd,
unfortunately I can't give you a straight answer as to what the issue was exactly because the printer went into service I think 2 or 3 times. They couldn't re-create the error, so the first time it was there I don't think they did anything to it. Printer came back, at the first print bum, error. Sent it back, they changed the motherboard, but the error still happened. The last time I sent it they changed the motherboard and HMI(LCD) board and so far the error hasn't happened since. So it's possible the LCD board was be culprit. But they couldn't tell me for sure what part was defective. Also, before sending it in I tried several repairs myself, I have many printers so I took good parts from my other printers and tried to identify the faulty part. Took a good motherboard am put it in the print, error, Took a good LCD board, error. Took a good cable that connects the motherboard and lcd, error. I even changed the power source, still error.

Try changing the USB stick, or even try printing thought USB cable connected to the PC and see if the error occurs. I had another Freeze error on another printer and some guys from CB said that it's possible there's a bad connection somewhere, the USB port or something that causes this freeze.

If you have 2 printers try swapping parts between them.

Hope this helps,

February 24, 2020

Paul Greucean Paul Greucean
2 posts
To start a discussion or reply to a post please Login or Create an account.