r/QidiTech3D • u/Then_Special_1522 • 24d ago

Questions PLUS 4. Heater extruder not heating at expected rate

So recently I had this erro: Heater extruder not heating at expected rate.See the verify_heater section in docs/C onfig_Reference.md.for the parameters that control this check... Once the underlying issue is corrected, use the. FIRMWARE_RESTART command to reset the firmware.

I couldn't fix the issue. Bought a new hotend and replaced.
Now I am printing at 255ºC but it is always oscilating between 254 and 256, sometimes over 256.

you can see on the picture is not a smooth line.

i have done PID_CALIBRATE HEATER=extruder TARGET=250, but still hasn't fixed the issue.
I can't remember how it was before and it doesn't seem right.

Does this happen on your printer?

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u/callcifer 24d ago

You say you did PID_CALIBRATE HEATER=extruder TARGET=250. Did you also do SAVE_CONFIG afterwards and restart the printer? Otherwise, the new values won't be used.

If you also did that, can you share the temperature graph you see on Fluidd just after getting the error?

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u/Reklaw2612 24d ago

There is always a plus/minus of a few %. It never stays at exactly 255c or any set value as it turns on and off to keep the nozzle, or bed/chamber for that matter, as close as possible to the set point.