HUD displays wrong - Temp 300/0 -

[Barackazarc]

Dear all,

I don't know if this topic belongs to here or not but I'm really desperate by now.

During a print I have got a clog so i preheated the hotend and i cleaned it up.
After I wanted to print again it turned out that the printer is not heating the hotend up and I saw on the GUI / HUD (whatever)
that the nozzle temp is 300/0,
OK I thought I might messed with the termistor so I ordered a brand new - 3 pc -. I put it there but it is still showing the same. I checked it with the others as well but it seems there's other problem(s too).

Right now I'm running the latest 'E3V2-Default-v4.2.7.bin' but tried 'E3V2-ManualMesh-5x5-v4.2.7.bin' as well.

I tried to found anything regarding that issue on the internet, asked it on FB on Ender 3v2 groups but no one could give me a proper answer for that.
TBH I didn't checked the new termistors with multimeter (yet) because thes should OK bc they are new but I will definietley.

It would be appreciated if you could give me hints what I need to do.

ps.: there's a picture taken from the hud

Thank you in advance,
Istvan

[Jyers]

Are you still facing this issue? My best guess would also be a thermister issue, but et me know if you have any new info that might help to diagnose this.

[Jyers]

Unfortunately at that point you are probably correct about it being a board issue, if there is any other way I can help, let me know.

[Barackazarc]

Thank you for your reply.
Well you still can help me. Keep doing that great job you did so far with this firmwares :-)
Btw - pid tuning is going to be available at one point in the menu?

[Jyers]

Yes, PID autotune is already implemented! So it will be in the next release :)

[Barackazarc]

Ahh cool! Thank you! Cant wait.

[Cal-LF]

Thank you for your reply.
Well you still can help me. Keep doing that great job you did so far with this firmwares :-)
Btw - pid tuning is going to be available at one point in the menu?

I compiled a FW yesterday and the PID Tune is nice. Also has return to bed point in the manual mesh in case it is skipped or needs redoing.