Error: Heater extruder not heating at expected rate

General Discussion
1

Basic Information:

Printer Model: Ender 3 Pro
MCU / Printerboard: Bigtreetech skr mini e3 3.0
Host / SBC - PI 4
klippy (2).log (489.0 KB)
klippy.log

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Describe your issue:

All was working fine with my printer and then when I came to use it the next time I was getting an error in Klipper. Error: Heater extruder not heating at expected rate

I have changed the extruder cartridge for a new one but I am still getting the error.

I have attached the Klippy Log and if someone could advise what the problem could be that would be most appreciated

F8IeMOjRYQ
F8IeMOjRYQ920×579 39.2 KB

wN85JhFFMq
wN85JhFFMq2182×734 78.7 KB

Thanks in advance

Mark

2

Did you intentionally heat the hotend and bed at the same time?
What happens if you only heat one at a time?
Does it work then or what raises the error specifically?

3

@LifeOfBrian I have tested heating the hot end and the bed and I get errors on both. Also tried both at the same time.

I also used a multimeter to check if any voltage was going to the appropriate connectors on the MB whilst heating and both show zero volts when testing. The main supply to the board shows 24v.

They just do not seem to heat anymore.

4

Sounds like your mosfet may have failed. I’ve had that happen before. You can get dedicated mosfet boards for pretty cheap that you can control with any of the other pwm-capable pins on the board.

5

Just to be sure: you specified the right pins for the heaters?
It is not impossible but rather rate that two mosfets die at the same time.

6

@LifeOfBrian

Everything was working fine but here are the settings for the extruder and Bed:

[extruder]
max_extrude_only_distance: 100
step_pin: PB3
dir_pin: !PB4
enable_pin: !PD1
microsteps: 16
rotation_distance: 34.406
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PC8
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PA0
#control: pid
# tuned for stock hardware with 200 degree Celsius target
#pid_Kp: 21.527
#pid_Ki: 1.063
#pid_Kd: 108.982
min_temp: 0
max_temp: 270

[heater_bed]
heater_pin: PC9
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC4
#control: pid
# tuned for stock hardware with 50 degree Celsius target
#pid_Kp: 54.027
#pid_Ki: 0.770
#pid_Kd: 948.182
min_temp: 0
max_temp: 130
7

Could you please use Preformatted Text for your code snippets? Things look much better then and more easy to read.

Format

2 Likes
8

@EddyMI3D updated

1 Like
9

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