Error: Extruder motor is overloaded, but it isn't

Hello,

I know, there are several other threads around addressing this error, but they don’t seem to fit my observing:
The left extruder stops working with this error from time to time. It happened with PLA and ABS so far. BUT: in 95% of the cases I can just say the problem is solved and it will print as nothing happened. In the other cases, pulling the filament out, cutting of the tip and putting it back in might resolve the problem.

With printing ABS I also observes, that warping might cause the problem. So basically, the part warps upwards and blocks the nozzle. Those are also the cases where I don’t have to do anything physically at the printer.

Currently, I’m printing a PLA-like material with absolutely no warping, and as described, either clicking the problem is solved, or clipping the tip of the filament and reinserting it, will solve it.

Has anybody similar problems or knows what to do? It’s really annoying, when a 12h print started before going to bed stops after 1h because of things like this.

Make sure there are no loose filament pieces in the extruder that are causing the issue. If there are none, here are a few things you can try:

  1. Raise the chamber temp for ABS/ASA to 65c, the max to prevent warping.
  2. Use nano polymer adhesive to prevent the items from warping and coming off the bed.
  3. Print a covers for the poop chute and belt tension holes to avoid cold air being sucked in.
  4. Sometimes due to the viscosity of the material you can get the “extruder overloaded” error as its tough to push it through the hot end. Try to raise the printing temp by 5-10c.

Here are the covers:

A very expensive adhesive, by the way — not that Magigoo is any cheaper, but at least they offer the right glue for every situation.

The warping is only related to unsupported overhangs, sorry that I didn’t clarify things. Otherwise I have 0 problems with printing ABS, even with large parts.

And anyway, this doesn’t explain the extruder overload error with material that doesn’t warp at all. Raising the printing temperatures didn’t help so far.

something is wrong with either the hardware or your filament path, I had warps for unsupported areas as well but never had even once extruder overload eissue. ~900hrs printing.

Ok, so the problem persists and even gets worse. Now even standard PLA triggers that error, while doing a flow rate calibration.
While loading the material, a loud clicking noise can be heard from the extruder. Here is a video showing it:

What I already did:

  • Print different material
  • Change the nozzle
  • Taking the extruder apart. I couldn’t see any debris or the like, so I put it back together.

Nothing did help. Printing with the right nozzle works just fine. All the tested filaments print without any problems on the right nozzle, while the left one is unusable.

I opened a ticket, but if somebody here can help, I’m more than happy.

I have exactly the same clicking noise,
What was the outcome of the ticket?

What was the outcome? Im having the same issue. How was it resolved, what was the culprit?

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I can share what happened in my case, since I had the same issue.

I was printing a very soft TPU with a slightly too high flow rate, and at some point TPU got stuck inside the extruder, which caused the clicking noise. When I disassembled the extruder, I also found a strange black sticky substance that felt like some kind of grease, spread over the extruder gears and on the right side of the plastic housing.

After cleaning everything thoroughly and, as has unfortunately become routine with my unit, replacing the damaged parts, it started working again. In my case, both the left and right extruders had begun to click and sometimes fail mid‑print due to overload errors. I am not entirely sure whether the black sticky residue was the root cause, but it definitely should not have been there, and the printer has worked fine since I removed it.

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I have the same issue (left nozzle H2C printer).

Anyone any solution? It could be a clogged nozzle (but I was able to do a cold pull), or maybe extruder gear is malfunctioning (shaft is loose from gear)?

Using an H2S and have the same error intermittently showing itself.
I have been back and forth with support for a week trying to solve it. Before I even made a ticket I did absolutely all the troubleshooting.

Measured and cut the PTFE Tubes to spec length with new PTFE tubing
Tried every combination of 4way splitters (I have 2) Removing and replacing.
Replaced the buffer. I keep spare parts on hand.
Replaced the yellow connector.
Swapped AMS 2 to see if it was the AMS causing the error.

None of these fixed the issue. None of the tests they have had me try have solved the issue as well. This happens on either AMS, any combination of lengths with the PTFE tubes, any or no 4way splitters.

What I did discover is the feed from the connector was questionable. Internally after the PTFE leaves the connector there is a guide that resembles just a hoop it must pass through. If you’re tube is curved it’s possible to get hung up on that. What’s a bit worse is if you make it through that hoop the inlet for the buffer is easy to misalign as well. You’ll know that’s an issue if filament stops at the connector.

I know none of this may help you, but you’re not alone with that error. I’m all but convinced the firmware has the extruder just too sensitive. Like you I can click ignore and it’ll feed again and start, only to stop randomly later.