# Issue with TZ-E3-2.0 Hotend **URL:** \ **Category:** General Discussion\ **Created:** [April 30, 2025, 8:44am UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218 "2025-04-30T08:44:04Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Ken\_Sent\_Me](https://avatars.discourse-cdn.com/v4/letter/k/ea5d25/32.png) [@Ken\_Sent\_Me](https://klipper.discourse.group/u/Ken_Sent_Me)\ **Post date:** [April 30, 2025, 8:44am UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218/1 "2025-04-30T08:44:04Z")
After changing my Ender 3 hotend to [TZ-E3-2.0 Hotend](https://trianglelab.net/products/tz-e3-20-hotend?VariantsId=11441) I have had temperature stability problems and have got ‘Heater extruder not heating at expected rate’ errors. I have set: extruder ‘max\_power: 0.8’, helps a little extruder ‘smooth\_time: 0.3’, helps a little After changing the REPORT\_TIME = 0.1 and smooth\_time: 0.2 my print temperature was 239.8 - 240.3 °C. Before it was about +/- 4 °C and some times even more and gave me that print stopping error. ---
**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\ **Post date:** [April 30, 2025, 9:32am UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218/2 "2025-04-30T09:32:13Z")
Hello @Ken_Sent_Me ! Please attach the `klippy.log` to your next post. ---
**Author:** ![Dj-vrYT](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/dj-vryt/32/18751_2.png) [@Dj-vrYT](https://klipper.discourse.group/u/Dj-vrYT)\ **Post date:** [April 30, 2025, 9:49pm UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218/3 "2025-04-30T21:49:09Z")
i have my settings like this and it works smooth\_time: 2.0 control: pid pid\_Kp=35.249 pid\_Ki=13.823 pid\_Kd=22.471 and this might also be it sensor\_type: Generic 3950 i also dont think you need a max power not sure how it is the the regular main board tho ---
**Author:** ![Ken\_Sent\_Me](https://avatars.discourse-cdn.com/v4/letter/k/ea5d25/32.png) [@Ken\_Sent\_Me](https://klipper.discourse.group/u/Ken_Sent_Me)\ **Post date:** [June 21, 2025, 9:51am UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218/4 "2025-06-21T09:51:26Z")
I think my ‘Heater extruder not heating at expected rate’ error was caused by part cooling fan broken wire. Sometimes it connected and sometimes not. Most of my errors came in some overhangs where the part cooling fan should be 100% and the broken wire caused it to be 0% or 100%. Because it also cools the extruder it can cause some unexpected heating/cooling and those errors. Thats what I think. I also think that this TZ-E3-2.0 extruder temperature needs to be measured and controlled more frequently than the original hotend because this will heat and cool lot faster than the original. There is “huge” aluminium block in original that stores the heat so it takes more time to change the temperature. I got my printing temperature much more stable with REPORT\_TIME = 0.1 and smooth\_time: 0.2 as I mentioned earlier. If you want and it helps I can do some test prints with different REPORT\_TIME and smooth\_time settings. ---
**Author:** ![strayr](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/strayr/32/143_2.png) [@strayr](https://klipper.discourse.group/u/strayr)\ **Post date:** [June 23, 2025, 3:04pm UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218/5 "2025-06-23T15:04:11Z")
Set max power to something like `max_power: 0.5` and do a fresh PID, then turn max power back up to 1, see if that helps. You might need to to tweak the max power a bit until you have a value that reaches and holds the required temperature. Try this spreadsheet calculator for the ‘some overshoot’ tune instead f the classic version > **[PID revision tool.xlsx](https://docs.google.com/spreadsheets/d/1PZHwCsxQoDFMnEoubs2KXGNHCKkt2IAF/edit?usp=sharing&ouid=104060007990857963258&rtpof=true&sd=true)** > > This Sheet is private Make sure also that your hotend cooling fan isn’t blowing on your heater, and check your heater and thermistor aren’t failing. I’ve had one thermistor fail, giving super low readings whilst the hotend turned ABS into smoke, and i’ve had a heater fail the other way, suddenly becoming really ineffective. ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\ **Post date:** [August 22, 2025, 3:05pm UTC](https://klipper.discourse.group/t/issue-with-tz-e3-2-0-hotend/23218/6 "2025-08-22T15:05:12Z")
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