# Auxiliary feeder issue **URL:** \ **Category:** Sovol SV08 MAX\ **Created:** [March 1, 2026, 8:07am UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677 "2026-03-01T08:07:04Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![LeoG](https://avatars.discourse-cdn.com/v4/letter/l/a88e4f/32.png) [@LeoG](https://forum.sovol3d.com/u/LeoG)\ **Post date:** [March 1, 2026, 8:07am UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/1 "2026-03-01T08:07:04Z")
Hi, my first prints have repeatedly been paused due to a message indicating an auxiliary feeder blockage. Apparently, this is a recurring issue with this machine. Is there a solution? I’ve read that it might be necessary to disable the feeder blockage sensor in Klipper. What would be the best solution in your opinion? ---
**Author:** ![mich0111](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mich0111/32/1176_2.png) [@mich0111](https://forum.sovol3d.com/u/mich0111)\ **Post date:** [March 1, 2026, 9:52am UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/2 "2026-03-01T09:52:46Z")
Hi, Have you tried with different filaments ? ---
**Author:** ![LeoG](https://avatars.discourse-cdn.com/v4/letter/l/a88e4f/32.png) [@LeoG](https://forum.sovol3d.com/u/LeoG)\ **Post date:** [March 1, 2026, 1:01pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/3 "2026-03-01T13:01:43Z")
No, for now I have only used ABS filament on this printer. The auxiliary feeder is connected to a dryer with a Bowden tube of about 80 cm. Could that create enough resistance to cause the feeder to malfunction? ---
**Author:** ![mich0111](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mich0111/32/1176_2.png) [@mich0111](https://forum.sovol3d.com/u/mich0111)\ **Post date:** [March 1, 2026, 1:20pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/4 "2026-03-01T13:20:31Z")
I don’t know, I don’t own such a printer. Try without dryer just to see. ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [March 1, 2026, 1:27pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/5 "2026-03-01T13:27:31Z")
Read through this thread: > [@Filament feeder failures](https://forum.sovol3d.com/t/filament-feeder-failures/8708): > > Has anyone else experience failures with the filament feeder? After setting up the printer I printed a few test prints, but each time I printed something, the print would pause during the print with an error that the filament feeder detected a clog. I checked. There was no clog. I just resumed printing and it started printing again. Another 10 minutes or so went by and the same thing happened. Then it happened again and again. I disassembled the filament feeder, but everything looked like… ---
**Author:** ![Matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@Matt](https://forum.sovol3d.com/u/Matt)\ **Post date:** [March 1, 2026, 2:03pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/6 "2026-03-01T14:03:12Z")
Some tubing introduces quite a bit of drag. I’ve had some the aux feeder wasn’t happy with. Is it clear tubing, by any chance? Try a different length of PTFE tube on it, or even just ditch the tubing between the drier & feeder temporarily, for testing. ---
**Author:** ![LeoG](https://avatars.discourse-cdn.com/v4/letter/l/a88e4f/32.png) [@LeoG](https://forum.sovol3d.com/u/LeoG)\ **Post date:** [March 1, 2026, 3:04pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/7 "2026-03-01T15:04:58Z")
The PTFE between the dryer and the feeder is a Capricorn. I’ll try with the filament directly on the spool holder. Is it a problem if the filament is warm because the drying process isn’t finished yet? If I’ve read the thread correctly, the solution mentioned is to install the “3dprintdemon Klipper Essentials Unified Macro Pack,” which helps better manage the feeder. I’ll try that if the problem isn’t coming from the PTFE between the dryer and the feeder. ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [March 1, 2026, 6:05pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/8 "2026-03-01T18:05:05Z")
> [@LeoG](#): > > Is it a problem if the filament is warm because the drying process isn’t finished yet? I print from my dryers all the time with my other printers…I do not own a MAX. ---
**Author:** ![mich0111](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mich0111/32/1176_2.png) [@mich0111](https://forum.sovol3d.com/u/mich0111)\ **Post date:** [March 1, 2026, 7:23pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/9 "2026-03-01T19:23:28Z")
> [@LeoG](#): > > Is it a problem if the filament is warm because the drying process isn’t finished yet? Normally, a dryer “dries” the filament. The temperature of the filament leaving the dryer is 60°C maximum and cools very quickly before reaching the nozzle. ---
**Author:** ![LeoG](https://avatars.discourse-cdn.com/v4/letter/l/a88e4f/32.png) [@LeoG](https://forum.sovol3d.com/u/LeoG)\ **Post date:** [March 1, 2026, 8:00pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/10 "2026-03-01T20:00:56Z")
Sorry, what I meant about this is that when I had print interruptions with a feeder blockage message, the dryer was still drying the ABS filament and was set to 80°C. If the filament is hot, can it stick or create more friction in the PTFE tube, or does it expand and move more difficultly inside the tube? I had the impression that once the drying finished And that the filament had cooled down there were no more auxiliary feeder errors. ---
**Author:** ![mich0111](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mich0111/32/1176_2.png) [@mich0111](https://forum.sovol3d.com/u/mich0111)\ **Post date:** [March 1, 2026, 8:24pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/11 "2026-03-01T20:24:32Z")
I can’t be sure but 80° for PTFE it’s very low ---
**Author:** ![d38968](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@d38968](https://forum.sovol3d.com/u/d38968)\ **Post date:** [March 2, 2026, 2:27am UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/12 "2026-03-02T02:27:43Z")
I run into this a lot – especially with 3 kg spools on large prints. I’m feeding PLA directly into the buffer when I get these annoying “print paused due to jam” messages. If i select RESUME, the print carries on with no problem until the next “jam detection” – usually in about 5 minutes. How do I turn off jam detection to eliminate all these false positives? Or at least reduce the sensitivity? ---
**Author:** ![LeoG](https://avatars.discourse-cdn.com/v4/letter/l/a88e4f/32.png) [@LeoG](https://forum.sovol3d.com/u/LeoG)\ **Post date:** [March 2, 2026, 4:23am UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/13 "2026-03-02T04:23:48Z")
I think there is a line to disable the feeder jam sensor in Klipper. Does anyone know it? ---
**Author:** ![LeoG](https://avatars.discourse-cdn.com/v4/letter/l/a88e4f/32.png) [@LeoG](https://forum.sovol3d.com/u/LeoG)\ **Post date:** [March 2, 2026, 5:25am UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/14 "2026-03-02T05:25:35Z")
Here is ChatGPT’s response to the question. I’m personally not very familiar with Klipper — can someone confirm whether this is actually feasible? On a Sovol SV08 Max running Klipper, the auxiliary feeder jam sensor is usually defined as either: - a filament\_switch\_sensor - a filament\_motion\_sensor - or integrated into a feeder management macro (auto-pause logic) You can disable it directly in your printer.cfg. **🔧 METHOD 1 — Simple (Clean & Reversible) Disable** This is the recommended method. **1️⃣ Open your** **printer.cfg** Via: - Mainsail → Machine → Configuration - or Fluidd → Configuration Files Look for a section similar to: [filament\_switch\_sensor aux\_feeder] pause\_on\_runout: True switch\_pin: ^PC15 or: [filament\_motion\_sensor aux\_feeder] detection\_length: 7.0 extruder: extruder switch\_pin: ^PC15 pause\_on\_runout: True **2️⃣ Disable automatic pause** Simply change: pause\_on\_runout: False Restart Klipper. 👉 The sensor will remain active but will no longer pause the print. **🔧 METHOD 2 — Completely Disable the Sensor** If you want to fully neutralize it: **Option A — Comment out the section** Add # in front of each line: #[filament\_switch\_sensor aux\_feeder] #pause\_on\_runout: True #switch\_pin: ^PC15 Then restart Klipper. **Option B — Remove the call inside macros** Some SV08 Max configurations use a macro like: [gcode\_macro FILAMENT\_RUNOUT] or: [gcode\_macro AUX\_FEEDER\_CHECK] In that case: - remove the PAUSE command - or replace the macro content with: gcode: ``` M117 Runout detected (ignored) ``` **🔧 METHOD 3 — Disable via Variable (Sovol-modified firmware)** Some Sovol configurations include a variable such as: variable\_enable\_aux\_sensor: True Just change it to: variable\_enable\_aux\_sensor: False **⚠ Important** If you completely remove the section and Klipper returns: Unknown sensor It means a macro is still referencing it. In that case, keep the sensor section but simply set: pause\_on\_runout: False That’s the most stable solution. **🎯 Recommended Approach** On the SV08 Max, the safest method is: ✔ Keep the sensor defined ✔ Set pause\_on\_runout: False ✔ Optionally increase detection\_length (e.g., 15 mm) if it’s a motion sensor This prevents false jam pauses without breaking the internal logic. ---
**Author:** ![DXJP](https://avatars.discourse-cdn.com/v4/letter/d/e0b2c6/32.png) [@DXJP](https://forum.sovol3d.com/u/DXJP)\ **Post date:** [March 2, 2026, 11:22pm UTC](https://forum.sovol3d.com/t/auxiliary-feeder-issue/9677/15 "2026-03-02T23:22:05Z")
There is a post in the max forum with a better config for the feeder. That’s helped a lot of people. You could also join the Sovol discord for more help there too.