Geeetech

Also, if your contacts have noticeably large lumps of solder on them, remove them with a soldering iron ... otherwise contact is bad and temperature readings will be false.

**I finally fixed the erratic temperature and print head errors!!**

In my last post I said I changed the head - and this worked for the first 5-6 prints.

BUT, erratic readings started all over again and the printer kept pausing with nozzle errors every 5 minutes.

However, after looking at the ...

I got dirt from the nozzle quite a few times - I believe its because of erratic temperature monitoring where the head gets so hot it burns the PLA or the head starts leaking :(

I changed the head and this worked for a while; now the new head is starting to do the same. In my opinion I don't think ...

OK - So I changed the nozzle and made sure it was seated correctly - now everything's back to normal :-)

It would be good to know how to clean out the other nozzle that's depositing black gunk!

Anyway, thanks again for your help.

@sectorbob ... thanks for that - I tried this and I still get black blobs and streaks throughout the print :(

I've tried several different filaments and reseating the head several times.

Not sure what's going on?

Hi - I had the same 0-Temp issues and updated to the latest firmware (v1.13.13) using EasyPrint3D's firmware update.
(Flasher-STM32 didn't work as it couldnt find the printer port)

However, now that 0-Temp doesn't occur, I often get black blobs in my prints as the temperature setting swings wildly ...