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Dave Adriaanssen
(@dave-adriaanssen)
Active Member
RE: Core One crash/restart

The first Scan they could not reproduce te error, i did have a old version of the power cable.
I'm Hoping they find it with the extensive testing.

Napsal : 03/05/2025 3:14 pm
John Doe se líbí
John Doe
(@john-doe-25)
Eminent Member
RE: Core One crash/restart

 

Posted by: @dave-adriaanssen

The first Scan they could not reproduce te error, i did have a old version of the power cable.
I'm Hoping they find it with the extensive testing.

Thanks for update! Interesting what will it be..

On my side I suspected it might be the main cable since only the big prints were problematic and some of small ones were performed either fine or with drastically less reboots during print, also got printer to reboot while moving the main cable, support agreed and replacement is en route.

 

As of 10 beeps, support told me that number of beeps by itself should not mean anything and doesn't help in diagnosis.

Napsal : 06/05/2025 8:40 pm
Wernair
(@wernair)
Member
RE: Core One crash/restart

I am having the same issues.

Happened several times but today was different, after 8 beeps and a restart it got immediately into another error with constant beeping. Display stated “puppy error” #31522 error code. Had to do a hard reset and was not able to resume the print.

I do also have noise and vibration issues as stated in another post here. 

anyone else having this combination of problems and/or had the puppy error?

thanks!

Napsal : 08/05/2025 8:28 pm
N8&Joey se líbí
John Doe
(@john-doe-25)
Eminent Member
RE: Core One crash/restart

 

Posted by: @wernair

I am having the same issues.

Happened several times but today was different, after 8 beeps and a restart it got immediately into another error with constant beeping. Display stated “puppy error” #31522 error code. Had to do a hard reset and was not able to resume the print.

I do also have noise and vibration issues as stated in another post here. 

anyone else having this combination of problems and/or had the puppy error?

thanks!

We might have same issue. I think one time out of many many reboots I saw the issue that puppy was not detected.

 

Napsal : 10/05/2025 10:01 am
N8&Joey se líbí
John Doe
(@john-doe-25)
Eminent Member
RE: Core One crash/restart

 

Posted by: @john-doe-29

 

Posted by: @wernair

I am having the same issues.

Happened several times but today was different, after 8 beeps and a restart it got immediately into another error with constant beeping. Display stated “puppy error” #31522 error code. Had to do a hard reset and was not able to resume the print.

I do also have noise and vibration issues as stated in another post here. 

anyone else having this combination of problems and/or had the puppy error?

thanks!

We might have same issue. I think one time out of many many reboots I saw the issue that puppy was not detected.

 

No luck... hoping for @dave-adriaanssen's repair to find out what is the issue sooner than later, otherwise I will have to return my core one kit assembled printer and now actually consider other machine

Napsal : 12/05/2025 7:45 pm
Sarah
(@sarah-4)
Active Member
RE: Core One crash/restart

I am having the same issue with mine. Goes dark and beeps, then reboots. Trying to work with support but so far all we have is it is not a power strip causing it and it is not the door sensor. 

Napsal : 13/05/2025 2:40 pm
Frosty
(@frosty-2)
Member
RE: Core One crash/restart

I'm having the same issue and Prusa don't seem to know what the actual cause is. Support just keeps asking for random troubleshooting in the hope that something fixes it. Very frustrating, because as it's not an isolated incident, surely there must be a common cause that they should have found by now?

Anyone else have any luck getting this sorted?

Napsal : 19/05/2025 4:09 pm
Sarah
(@sarah-4)
Active Member
RE: Core One crash/restart

I thought I'd fixed the issue on mine when I checked all wires and found something slightly loose on the LCD, but after another round of successful prints it did it again. My current suspicion is a nozzle clog or something along those lines...it looks like the nozzle temp may have dropped right before it did it this last time. But please update here if anyone finds anything!

Napsal : 19/05/2025 6:25 pm
Sarah
(@sarah-4)
Active Member
RE: Core One crash/restart

Just chatted with support and they're going to send me a new main board since there is no record of power failures on the printer. I also found both nozzles I've used to be clogged. So I can't say if that has anything to do with anything but it might be worth checking. 

Napsal : 19/05/2025 8:14 pm
N8&Joey se líbí
Frosty
(@frosty-2)
Member
RE: Core One crash/restart

Thanks for the update Sarah. I've just completed the "check every cable again" request from Support and I'm about to start a test print to see how it does. 

During my inspection I did find that the connector for the Power Supply is slightly loose. See the video here: Power Supply Connector

I'm half wondering if there's something within the Power Supply that is faulty. Keep us updated with how the replacement of the main board goes.  

Napsal : 21/05/2025 12:35 pm
N8&Joey se líbí
Sarah
(@sarah-4)
Active Member
RE: Core One crash/restart

Mine moves the exact same way. This is my first printer so I wasn't't sure if that was just something they did or if that might be an issue. I am attempting some tests after a thorough nozzle unclog, so we will see. I have no clue why something like a nozzle clog would cause that or if it could, but I'm checking everything at this point. 

Napsal : 21/05/2025 11:38 pm
N8&Joey
(@n8joey)
Member
RE: Core One crash/restart

Greetings all - 

I'm having the exact same issue and have been working with multiple Prusa Support team members over the past couple of days to troubleshoot. They shared most all of the same suggestions & ideas about root cause as above (PSU possibly faulty, xBuddy/Extender board faulty, cable connections, etc...). As of now they're mailing out replacement a xBuddy board, extender, and main cable to me to replace and see if this resolves it. I had the exact same symptoms as above - including one "Puppy Not Found" red screen - so I'm hopeful that this resolves. I'll update as soon as I receive & install the replacement as to whether this fixes the issue.

Napsal : 22/05/2025 1:36 pm
Biomech
(@biomech)
Estimable Member
RE: Core One crash/restart

To me these issues sounds like a problem with your electrical installation. Are your sockets properly grounded? Can you try on different branch of sockets connected to different circuits breaker?

Napsal : 23/05/2025 12:08 pm
Jürgen
(@jurgen-7)
Prominent Member
RE: Core One crash/restart

Could those who have experienced the spontaneous crashes please indicate which country they are in -- or at least whether they are on 115V or 230V mains? If the issue is indeed mains/power supply related, there might be a correlation.

Napsal : 23/05/2025 12:26 pm
Raaz se líbí
Sarah
(@sarah-4)
Active Member
RE: Core One crash/restart

I'm in the US. Standard wall outlet and also a surge protector have both done it, but I've also had prints without the issue on the same outlets 

Napsal : 23/05/2025 12:42 pm
N8&Joey a Jürgen se líbí
Frosty
(@frosty-2)
Member
RE:

I’m in the UK (230V). I’m running the printer from a dedicated electrical outlet via a surge protector, so I’m fairly confident that not overloading the circuit or surging. I’ve lived here for 6 years with lots of gadgets/tech without any issues. It also only started a few weeks after getting the printer. Before then it was printing almost non-stop flawlessly. 

Prusa is sending me a new Power Supply, so let’s see if that helps. 

This post was modified před 6 days by Frosty
Napsal : 23/05/2025 12:52 pm
Wernair
(@wernair)
Member
RE: Core One crash/restart

I live in Central Europe. 230V dedicated electrical outlet via a surge protector for the C1.
Have not yet talked to Prusa support about this as I was hoping to find a solution in the forum.

Napsal : 26/05/2025 2:48 pm
John Doe
(@john-doe-25)
Eminent Member
RE: Core One crash/restart

Hi everyone, before the PSU came to me, I tightened all the cable ties in printer (learned that the connectors vibrating is a big nono and need to be arrested when researching building voron) and I also moved printer a bit to the left and started printing voron parts....

And magic happened! 25+ hours of various printing with no restarts.

Really hope it helps anyone.

 

Returning the printer anyway due to other hardware flaws with the machine that I paid 1000€ for.

Napsal : 27/05/2025 10:54 am
Raaz se líbí
Oxidizing
(@oxidizing)
Member
RE:

Hi all, I’ve run into the same restart issue mentioned here. My CoreONE worked fine for about a week after setup (received May 9, in use since May 20), but then suddenly started randomly crashing during a larger PETG print – beeping 8–10 times, rebooting, and trying to resume. This loop continues indefinitely until I cancel the print manually. Since then, the same thing has happened even with smaller PLA prints.

Firmware is up to date (6.3.3+10442), I’ve disabled the door sensor, checked all cables, and followed the suggestions in this thread – no luck. I’m located in Germany and using the standard 230 V / 50 Hz power supply.

I've contacted Prusa support with detailed documentation. Really hoping this gets addressed soon. I’ll share any updates I get from support here.

This post was modified před 2 days by Oxidizing
Napsal : 27/05/2025 11:03 am
Dave Adriaanssen
(@dave-adriaanssen)
Active Member
RE: Core One crash/restart

Im in NL with dedicated socket, earthed ofcourse.  i recieved the printer back from pruse, they updated the firmware and added a new Powercable, couldnt find something else.  recieved it back and for now no more isseus.

 

 

Napsal : 27/05/2025 11:24 am
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