1

First print after assemble went impressively well. Then I started a second one, ETA was about 9 hours. On 8 hour it just stopped with an “ERR:MINTEMP” error. Only reset solved it. Now I can’t finish any big print cause nozzle just stops extrusion sometimes. Temperature jumps from 150 to 210 in seconds. But after full cooldown, I can print for some hours without any errors or temperature issues, but every time I finish up with this. Any ideas?

1 Like
2

Check the Velleman forum and search for “ERR:MINTEMP”, that should give you a few pointers.

http://forum.velleman.eu/viewtopic.php?f=61&t=13456&p=59632&hilit=err%3Amintemp#p59632

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I haven’t had this issue on my vertex but I wouldfirst check you have the latest and/or correct firmware installed if thats ok then perhaps their is a loose connection on the control board or print head also check the thermistor is in the correct location and the heater cartridge is secue

hope that helps

4

Check good connection of the hotend temp. Sensor. If this is not having a good and stable connection Mintemp error will occur. Printing from SD card gives less problems.

5

I had similar issues (with the K8200) which was due to a bad connection at the hot end. Check all connections and try to force the ERR:MINTEMP by moving the wiring gently around so you know where the bad connection is located

Succes

6

This means there is a loose thermal contact in your hotend thermistor or a loose electrical contact. best you replace your

thermistor. There are cheap on ebay.