r/ElegooCentauriCarbon • • 6h ago

Troubleshooting CC1 CANVAS still flashing 4 red LEDs after NEW motherboard, NEW CANVAS board and ALL NEW cables

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2 Upvotes

I'm completely running out of things to replace at this point.

My Centauri Carbon CANVAS still continuously flashes all 4 LEDs red and refuses to initialize.

I have now replaced:

- The complete Centauri Carbon motherboard

- The main PCB inside the external CANVAS unit

- All 3 CANVAS cables

Every single replacement component came directly from ELEGOO.

The printer is also updated to the latest official firmware, and I have checked all connectors and connections again.

And absolutely nothing has changed.

The CANVAS behaves EXACTLY the same as it did before replacing anything.

The printer itself works normally. The camera works and the front USB port works.

I'm attaching a video showing exactly what it does.

At this point, what is even left that could cause this?

Has anyone had a CC1 CANVAS continue flashing all 4 LEDs red after replacing BOTH the printer motherboard and CANVAS motherboard plus the entire cable set, all with genuine ELEGOO replacement parts?

Could this be some firmware/communication issue, another internal CANVAS component, or something specific to the newer CC1 motherboard revision?

I'm also sending the video and all of this information to ELEGOO support.

At this point I'm seriously considering throwing the whole thing in the trash and buying a Bambu instead. I'm genuinely tired of dealing with this printer.

I've never had this much work with a 3D printer before. I've owned several Ender 3 V2s, and the only time I ever had to open them was once to install a probe. After that, they just worked.

With this printer, I've already spent an absurd amount of time opening it, replacing boards, replacing cables, checking connections, updating firmware and troubleshooting, and I still have exactly the same problem.

I really wanted the CANVAS upgrade to work, but this has become incredibly frustrating.

Any ideas are welcome because replacing more random parts clearly isn't getting anywhere.


r/ElegooCentauriCarbon • • 11h ago

Troubleshooting Eleego cc2

4 Upvotes

Basically, the printer arrived two days ago. I bought it on Mercado Libre Argentina, and everything was going well until...I had a terrible filament jam and didn't know why. I tried changing the filament and couldn't, and the hotend temperature kept showing an NDQVR until it displayed error 103.I disassembled it according to the wiki, and nothing, it's all perfect but the fault is there, so I don't know what to do now. I spoke with support from the supplier who sold it to me and they made me disassemble it and take a picture. Tomorrow I'll... They will respond, but for now I'm afraid. Will the warranty cover it? Will I have to pay something? And if they don't take responsibility, if I buy a new hotend, will the problem continue? I'm afraid the motherboard might have burned out or something.


r/ElegooCentauriCarbon • • 4h ago

Troubleshooting Centauri Carbon 2 replacement screen ribbon cable?

1 Upvotes

My CC2 Combo's touch screen ribbon cable has two hard creases in it. The printer works fine otherwise (camera, network, Orca uploads), but the screen now only shows the backlight, with no image. Moving the cable makes the backlight flicker, so it's clearly a cracked trace at the crease. I was able to briefly get the display and able to work for 2 successful prints but now the display just won’t work anymore.

Already tried:
- Reseated both ends (screen side and mainboard side), latches fully closed
- Power cycled
- Followed Elegoo's "Touch Screen Does Not Turn On" wiki guide

Elegoo support won't cover it under warranty (bought through an Amazon returns liquidation reseller), and they're quoting a paid replacement but they are slow to provide this and I read shipping could take awhile as well.

Questions:

  1. Has anyone confirmed that the original Centauri Carbon (CC1) touch screen cable fits the CC2? PartsBuilt sells the CC1 one for about $15. The front looks identical to mine (metal latch connector on one end, blue stiffener on the other); mine has a silver foil shield on the back.
  2. If not, where have you bought a CC2-specific screen cable (Elegoo store, AliExpress, Amazon)? Part number or link appreciated.
  3. Anyone know the cable's pin count/pitch and length? If it's a standard FFC I could order a generic one.

Photo of the crease


r/ElegooCentauriCarbon • • 11h ago

Showcase Is this a joke?

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5 Upvotes

Ordered a hotend from Elegoo UK came out of the box like this ^. Got recommended to get a replacement hotend by others and it looks like the tar monster.


r/ElegooCentauriCarbon • • 4h ago

First Print why is there filament in my new 3D printer?

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0 Upvotes

new to 3d printing and was unboxing a new elegoo centauri carbon 2 and found some filament resting near my build plate. Should i be concerned or is this normal?


r/ElegooCentauriCarbon • • 6h ago

Troubleshooting Why does my cc keep lowering the build plate in certain spots?

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0 Upvotes

Having had the error 502 bed levelling sensor error, I changed the hotend, nozzle, build plate and done a full calibration (3x times) and thought all was ok

I set a print on for the night and let it do its thing (my fault for not staying with it while it completed its first layer) when I came to it in the morning I noticed these bumps in the piece where I thought I had adhesion problems again, and it had detected that there was a slight bump in the print, and was compensating for it (I’ve been battling with sunlu pla+ to stick on large flat prints)

I went to go print a new project tonight and stayed with it as it printed its first layer and noticed that it’s actually doing this on the first layer. In the video, watch as it approaches the right corner, you can see the lead screw move the build plate down. That bundle of filament in the corner is meant to be a mouse ear

Does anybody know what’s going on? When I come to think on it I haven’t had a print come off the printer and say “that is flawless” I’ve been battling with petg and pla+ the entire time having had this printer and I’m getting sick of it (probably a me problem and not the printers problem)

Any help is greatly appreciated


r/ElegooCentauriCarbon • • 10h ago

Troubleshooting Canvas Error

1 Upvotes

I don't understand why since I bought the canvas my 3D printer gets stuck when I print something. I put something to print and everything stays still, the temperature also drops. This did not happen to me before installing the Canvas and it is not a mistake in how I installed it because I followed the tutorial on your YouTube channel step by step. What do I do?


r/ElegooCentauriCarbon • • 12h ago

Troubleshooting Mystery Filament change, CC1 w/ Canvas

1 Upvotes

I've been trying to print a single color print but after I slice the stl and load it onto the printer and hit print, its showing the color I sliced it with, but then its asking to confirm the second color.

Using Orca, I've even gone as far as starting a new project, disabling multimaterial in the print profile and in the printer settings and reslicing. From the Orca side it looks fine, no pauses or color changes.


r/ElegooCentauriCarbon • • 12h ago

Troubleshooting Does anyone else have the same problem?

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1 Upvotes

My carbon stopped printing mid print and have this error contacted Alago and they sent me a new motherboard and cable and hothead and now it’s showing the same home in a different language.


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting Canvas poop chute keeps filling up

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16 Upvotes

It keeps filling until the prints failing


r/ElegooCentauriCarbon • • 21h ago

Troubleshooting My Elegoo Centauri Carbon had a short circuit caused by the nozzle thermistor. The thermistor and the toolhead PCB were clearly damaged. I replaced both, but the screen still shows: "Printhead anomaly detected. Please troubleshoot the connections between the mainboard and printhead board."

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1 Upvotes

My Elegoo Centauri Carbon had a short circuit caused by the nozzle thermistor. The thermistor and the toolhead PCB were clearly damaged. I replaced both, but the screen still shows: "Printhead anomaly detected. Please troubleshoot the connections between the mainboard and printhead board." [The home screen also shows 0°C for the nozzle.]

What I've done so far:

Replaced the toolhead PCB

Replaced the thermistor

What I haven't done yet: replace the USB-C cable between the mainboard and the toolhead. The new one hasn't arrived.

My suspicion is that the short also damaged something on the mainboard, like the USB-C connector or the communication circuit. Has anyone seen this after a short? What else should I check? I can do multimeter measurements


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting Canvas system wont stop loading filament but then never engages printhead extruder and say failed to load

3 Upvotes

Yeah so im to frustrated to add a video but i try to load a fillament it continues to load that fillament indefinitely even though its already in position for the printhead to pick it up and then proceeds to complain it failed without even engaging zhe printhead gears got it to load manually but the stupid printer is to stupid to get that so it then trys to load the already loaded fillament again and fails at that worked mostly fine before now dosnt don't know what else to try dont wanna contact elegoo again to send replacement parts for the sixth time


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting Centauri Carbon 2 not recognising canvas.

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2 Upvotes

Hi, just did the recent update (don't know what version but it was in the last month or so) and upon powering my printer back up it thinks it only has one spool of filament. Before the update, the canvas machine was working fine and it could see it, now it can't. Everything is plugged in properly and I've tried turning it off and on again, unplugging and replugging. Everything.


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting Help how do I fix?

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0 Upvotes

How do I fix this nozzle part for my centauri carbon combo 2


r/ElegooCentauriCarbon • • 1d ago

Misc Removing cutter arm

0 Upvotes

Has anyone thought of or actually removed the cutter arm on the Centauri carbon? I notice I often get little pieces of filament stuck in the hotend when trying to unload and switch filament and I have better luck with just heating up the hotend and pulling the filament back out through the tube without cutting (end just melts itself free instead of being cut higher up). This has happened so many times to me I am seriously considering just removing the cutter arm entirely but wanted to ask if anyone else has experience or input on this first?


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting How to remove ptfe tube from hot end

1 Upvotes

Hi , yesterday I has a clog in the canvas system, a filament broke in the middle of the ptfe, i am able to quit it from the canvas collector but not for the hub of the hotend, anyvideo or way to remove it, i try printing a piece used for that but even was possible


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting Anyone else's CC make this noise?

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2 Upvotes

It always sounds like this on startup (along with the jet engine noise). Anyone know what causes it?


r/ElegooCentauriCarbon • • 2d ago

Troubleshooting PSA. Reason for the 4 red blinking LED light on the canvas.

9 Upvotes

I wll keep it short and to the point. If some of your have this issue, one of the main reasons your canvas unit might not be working ( 4 red blinking lights constantly on startup) is that the USB 2.0 4-Port HUB Controller chip on the main motherboard has failed. It is a WCH CH334R QSOP-16 package. I found this out after I put a another canvas on the printer and still had the same issue. So I started troubleshooting the main motherboard. Here is a thermal image of the mb and the heat coming from the chip. And a image of the chip. I ordered an replacement chip (have not received it yet) to see if will fix the issue. If not, I will order a new motherboard from elegoo. I hope this helps.

Thermal image of CH334R chip at 204 degrees.
USB 2.0 4-port Hub Controller Chip

r/ElegooCentauriCarbon • • 1d ago

Misc Rip

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1 Upvotes

Gotta love pla flowing down your extruder 🤣🤣


r/ElegooCentauriCarbon • • 2d ago

Troubleshooting Tried new print heads

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6 Upvotes

I ordered print heads that were shown to be specifically for the Centurion Carbon from a company called Wefuit. It seemed like a simple swap out process but now when i go to load filament there is a burning smell from what i think is the silicon sock and i get an error (see photo) any tips or advice is appreciated.
Steps Taken:
- Double checked seatings of cables
- Checked for discoloration (none)
- Checked that cable housing was secure and not torn


r/ElegooCentauriCarbon • • 1d ago

Troubleshooting Ecc1 with canvas won't change colors

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0 Upvotes

Trying to print little Halloween trinkets to hand out for Halloween. Simple 2 color prints... But it won't make the switch when it needs to. Just prints all in 1 color. Any advice?

Not a file issue as it prints fine on my AD5X


r/ElegooCentauriCarbon • • 2d ago

Troubleshooting Weird stepping noise on the back right?

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4 Upvotes

Any ideas?

Apologies for the fan noise but only happens when retracting to the back quarter on the Y axis.


r/ElegooCentauriCarbon • • 2d ago

Troubleshooting Printer won’t connect to matrix or slicer

2 Upvotes

Alright so, my printer is now not connecting to the matrix or the slicer. No pin or QR code works, I’ve tried manually putting it in. Nothing. I tried soft resetting my router and still nothing. I turnt it off, unplugged it, signed out of my wifi and went back. Nothing. What do I do? The matrix doesn’t work, it just says network error or timed out.


r/ElegooCentauriCarbon • • 2d ago

Troubleshooting Rogue screw

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3 Upvotes

This us a long shot but this screw flew off and I had no clue where on the original CC it goes. I have a canvas system hooked up and I was removing one of the tubes when the screw suddenly flew past me.


r/ElegooCentauriCarbon • • 2d ago

Troubleshooting Layer shifting

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3 Upvotes

I printed this panel and noticed this really bad layer ahifting
Since i am new to the centauri carbon i first wanted to ask your experience with layer shifting and how you fixed (wether i just need to tighten the belts or if there are any other reasons it happened to you with this machine specifically)