<p>Recently, I started experimenting with new filaments on my Ender 3 V2. I got a spool from <a href="https://rads.stackoverflow.com/amzn/click/com/B00VKSW6PS" rel="nofollow noreferrer" rel="nofollow noreferrer">here</a>.</p>
<p>This is PETG filament and I started dialing in the temperature to run a smooth print. I found on my V2, if I run the filament around 240 °C, it prints very smoothly and the extruder doesn't jitter or distort the filament during printing.</p>
<p>However, I found after the printer was printing for about an hour it had reduced its hotend temperature to 210 °C and the print went bad! I have a stock hotend for the V2. Any thoughts as to why the temperature would have reduced itself?</p>

CC BY-SA 4.0
2021-04-13T11:37:28.333Z
Welcome to 3DPrinting.SE. The printer does not change the temperature without a corresponding instruction. Check if your G-code contains temperature reduction instructions. Did you have similar problems with a previous print? Is this the first time you are printing with PETG? Are the settings in your slicer correctly set?
Molitoris
CC BY-SA 4.0
2021-04-14T09:20:27.353Z
IMHO the answer for this question is found [here](/a/11811/5740), and as such a duplicate, please find out if your printer has [Thermal Protection](/q/8466/) enabled, read for details [this answer](/a/8467/).
0scar
<creality-ender-3><temperature>
Ender 3 V2 hotend temperature issues
TheCollector
# Ender 3 V2 hotend temperature issues

(Asked by: username_0 on 2021-04-13)

Recently, I started experimenting with new filaments on my Ender 3 V2. I got a spool from [here](https://rads.stackoverflow.com/amzn/click/com/B00VKSW6PS).

This is PETG filament and I started dialing in the temperature to run a smooth print. I found on my V2, if I run the filament around 240 °C, it prints very smoothly and the extruder doesn't jitter or distort the filament during printing.

However, I found after the printer was printing for about an hour it had reduced its hotend temperature to 210 °C and the print went bad! I have a stock hotend for the V2. Any thoughts as to why the temperature would have reduced itself?

**Tags:** creality-ender-3, temperature

> **Comments:**
> **username_1**: Welcome to 3DPrinting.SE. The printer does not change the temperature without a corresponding instruction. Check if your G-code contains temperature reduction instructions. Did you have similar problems with a previous print? Is this the first time you are printing with PETG? Are the settings in your slicer correctly set?  
> **username_2**: IMHO the answer for this question is found [here](/a/11811/5740), and as such a duplicate, please find out if your printer has [Thermal Protection](/q/8466/) enabled, read for details [this answer](/a/8467/).  

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## 0 answers

