Heater Extruder Not Heating at Expected Rate

Sovol SV06 ACE
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1

Hey y’all,

I ran into an issue using a new filament - turns out I was using too fast a printing speed on too low a temperature and ended up with a clogged nozzle.

While replacing the nozzle, I discovered a cracked ceramic heater - SOVOL replaced this (along with a new thermistor) and I fitted them to a new nozzle assembly.

While fitting the new nozzle assembly the heater socket on the extruder mainboard detached - SOVOL replaced this and I fitted it this morning, ensuring all cables were connected securely and correctly.

While running the printer through a filament load, the hot end did not heat up. I then restored to factory defaults and the printer got stuck on step 2 with the error message “Heater Extruder Not Heating at Expected Rate”

My next thought was to replace the entire extruder. However, I need help edit making sure there is nothing else I’m missing /edit before taking this next step.

2

Hello,
And what’s next?
Replacing a complete extruder is very easy, 3 screws to tighten.

3

My issue isn’t having to replace the extruder mechanically, it’s help diagnosing what else could be causing the hot end to fail.

4

You know, if the nozzle is clogged, the ceramic is broken, the thermistor is out of order and so on, it’s really hard to figure out a specific issue.
If you use a filament at too fast a speed and too low a temperature, you’re probably blowing up the nozzle, but that’s a hypothesis.

5

Ok. I appreciate the response.

I replaced the nozzle assembly with a new one including heater and thermistor. And I am now painfully aware of the correlation between print speed and temperature.

The extruder control board has been replaced due to a fault with that.

I would appreciate any further ideas as to why the hot end is failing to heat up before I order a completely new extruder.

6

Thermistor or heater problem. Double check that you didn’t break the thermistor wire.
Since you restored to factory settings, I would try updating the ACE to the latest firmware & try it again.

Also, I have read that Klipper will throw this error if the SD Card/USB is bad, because the printer can’t read it correctly when trying to heat up.

7

Thank you for the response. Couple of things:

  1. the nozzle assembly, thus the heater/thermistor are new. I will try changing the nozzle again after I diagnose the SD card problem.

  2. prior to the factory reset the latest firmware was already installed.

  3. cannot locate the SD card to check whether this is the malfunctioning part. If y’all could tell/show me where it is, I’d appreciate it.

8

Sorry, not SD Card…USB Drive…forgot it was the ACE.

9

There is no USB attached to the ACE at the moment. I don’t use it at all while printing.

Should I have the provided USB plugged in the whole time?

10

It doesn’t matter, if it wasn’t plugged in, that’s not causing your error.

I have mine plugged in, so I know where it’s at. :wink:
If you send your files from Orca to the ACE, it stores those files on the board…Local.
If you put the Gcode on the USB…then it’s USB.

11

@sovol3d

Capture

12

Cool. So, switch the nozzle for another new one, update the firmware. Else it’s waiting for SOVOL to get back after new year.

13

OK - so I switched out the nozzle assembly for another new one - lo and behold it works.

A few observations:

  1. The nozzle screws are just only just tightened to the extruder.
  2. The heater/thermistor connectors are secured - SOVOL suggested some thermal grease would help, but I didn’t have any.
  3. It’s possible the heater/thermistor cables are broken, but I cannot verify this at the moment.
  4. It’s worthwhile checking the connections on the extruder board with a multimeter to ensure everything is working.

Thank you for your help, I really appreciate it.

Happy Printing.

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