TA-06 · November 2026

Pro3 Plus Temperature Error

The Pro3 has been giving sporadic warnings of a nozzle temperature drop to 0°C.

Printer: Raise3D Pro3 Plus HS (opens in a new tab)
Problem: False nozzle temperature drop to 0°C
Suspect: Printhead connection cable
Status: In progress

A Raise3D printhead from above on a cutting mat, with its connector pins and white cable plugs. — The printhead and its cable connections

01The error

Obviously, that’s not a real number, so the likely culprit is a bad connection. Usually, I could restart the printer and it would let the print proceed. Lately, a new version of the error would just stop the print.

The printer’s touchscreen showing “Error: Extrude below minimum temp, Error 3029” with a prompt to contact after-sales service. — The new version of the error

02Swapping cables

In the process of getting help from Raise3D’s wonderful support, I noticed the second printhead I replaced recently has a nicer connection cable with each wire cemented in. I swapped the cables and am printing again.

The printer’s control board with white connectors and bundled cables plugged in. — Cable connections at the board

03What’s next

Maybe the error will return or maybe it won’t. If it does, I’ll need to look at other cables. If it doesn’t, I guess I’ll get a replacement cable so I can use the second printhead again.