Rat Rig Community [Unofficial]•2mo ago

Heater extruder not heating

Hi all again, I can't seem to heat up the hotend on the vcore 3.1 I am trying to finish commissioning. When I do the PID tuning for the extruder (the stock Phaetus Rapido), or when I just try to raise the temperature from the console, I always get this klipper error:

Heater extruder not heating at expected rate
See the 'verify_heater' section in docs/Config_Reference.md
for the parameters that control this check.

Heater extruder not heating at expected rate
See the 'verify_heater' section in docs/Config_Reference.md
for the parameters that control this check.

I am using the default conf for the hotend:

[extruder]
dir_pin: !e_dir_pin       # Remove ! in front of pin name to reverse the direction of extruder
rotation_distance: 5.57   # Bondtech LGX Lite default
#pressure_advance: 0.05   # Check https://www.klipper3d.org/Pressure_Advance.html for pressure advance tuning.
control: pid
pid_kp: 28.413
pid_ki: 1.334
pid_kd: 151.300

[extruder]
dir_pin: !e_dir_pin       # Remove ! in front of pin name to reverse the direction of extruder
rotation_distance: 5.57   # Bondtech LGX Lite default
#pressure_advance: 0.05   # Check https://www.klipper3d.org/Pressure_Advance.html for pressure advance tuning.
control: pid
pid_kp: 28.413
pid_ki: 1.334
pid_kd: 151.300

I checked all the cables and they are not broken, plus if I hold a lighter under the extruder I can see the thermistor is registering an increase in temperature. What can be wrong? 🙏

Solution:

ah crap I guess it’s fried beyond salvation then 😕

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12 Replies

TheTik•2mo ago

What is the temp it is reporting?

0x42OP•2mo ago

around 19 which is the starting room temperature, and then no change and it throws the failure.

TheTik•2mo ago

no change when you command a temp increase, but it does change with a lighter. hm. Best guess right now is that the wiring is wrong curious if you put 24V directly to the hotend if it heats

blacksmithforlife•2mo ago

show us pictures of how you have it wired and your printer.cfg and ratos.cfg

0x42OP•2mo ago

configs

RatOS.cfg

printer.cfg

0x42OP•2mo ago

wiring

0x42OP•2mo ago

I tested the HE0 port and it delivers 24v fine when I try to increase the temp. I also tested all the fuses on the octopus and they are all good. 😕

0x42OP•2mo ago

I do get a reading when testing the resistance… not sure if i’m doing it right?

TheTik•2mo ago

that wiring looks right, and you are reading a resistance on the heater. Not sure what that resistance should be but as long as it isn't 0 or infinity seems alright

0x42OP•2mo ago

I read M Ohms… can that be a bit too high?

TheTik•2mo ago

oh! Yeah thats way too high. Should be in the single digit Ohms

Solution

0x42•2mo ago

ah crap I guess it’s fried beyond salvation then 😕

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Programming

Heater extruder not heating

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