Extruder Not Heating at Expected Rate - Creality Ender 3 Pro w/Big Tree Tech SKR Mini E3 v2.0

Get Help
1

What is the problem?

When I try to print anything the extruder and bed will heat as expected, and when the printing actually begins, the extruder will stop being heated, which leads to a "Extruder not heating at expected rate" error, as shown below from my printer's output:

Recv: B:53.4 /60.0 T0:154.0 /175.0
Recv: B:53.5 /60.0 T0:152.3 /175.0
Recv: B:53.6 /60.0 T0:152.1 /175.0
Recv: B:53.7 /60.0 T0:153.8 /175.0
Recv: B:53.9 /60.0 T0:155.2 /175.0
Recv: B:54.1 /60.0 T0:154.3 /175.0
Recv: B:54.2 /60.0 T0:151.8 /175.0
Recv: B:54.3 /60.0 T0:156.5 /175.0
Recv: // Klipper state: Shutdown
Recv: ok
Send: N6 M109 S200*108
Recv: // Heater extruder not heating at expected rate
Recv: // See the 'verify_heater' section in docs/Config_Reference.md
Recv: // for the parameters that control this check.
Recv: //
Recv: // Once the underlying issue is corrected, use the
Recv: // "FIRMWARE_RESTART" command to reset the firmware, reload the
Recv: // config, and restart the host software.
Recv: // Printer is shutdown
Recv: !! Heater extruder not heating at expected rate

Before you tell me this is a hardware issue, please note that I just recently switched from using Marlin and I've never had this happen before. Also note that the extruder does heat to a full 175° C, then simply stops staying at that temperature.

What did you already try to solve it?

I have:

  • Looked over my config
  • Looked over the GCode file
  • Printing in safe mode
  • Googled it
  • Asked on a Discord server

Have you tried running in safe mode?

Yes, and I experienced the same behaviour.

Did running in safe mode solve the problem?

Nope.

Systeminfo Bundle

octoprint-systeminfo-20251018105156.zip (19.4 KB)

Additional information about your setup

OctoPrint Version: 1.11.3
OctoPi Version: 1.0.0
Python Version: 3.9.2
My printer:
I use a Creality Ender 3 Pro with a Big Tree Tech (BTT) SKR Mini E3 v2.0 motherboard and a BTT SFS v2.0 filament runout sensor. Those are the only hardware changes that make a difference in my printer.
Here's my printer's configuration file.

Any help is greatly appreciated!

2

This is an error sent by Klipper.

You may consult the Klipper forum for further help.: https://klipper.discourse.group/

3

Whoops. Thanks. I'll repost this in their forum, but before this is closed, I want to try changing my Klipper configuration a bit to relax the verify heater setting and see if that fixes it. If it doesn't, I'll open a topic there and link it here, then close this one.

4

Alright, I experimented with the verify_heater section, and while I got past that hurdle in a way, now I've found even more issues. I opened the new topic here: Creality Ender 3 Pro w/Big Tree Tech SKR Mini E3 v2.0 Extruder Heating Issues - General Discussion - Klipper. I'll go ahead and close this one.

1 Like