Retighten the hot end isolator

The hot end isolator connects the separate parts of the hot end. It is important that the hot end isolator is properly screwed onto the heater block to prevent any material from gathering between these parts. If material does gather between these parts, it can lead to print quality issues or blockages.

It is recommended to re-tighten the hot end isolator every three months to ensure the parts are connected securely.

Parts required:

  • None

Tools required:

  • Hex screwdriver


  • 5 minutes

1. Remove the filament

  • On the Ultimaker 2+, navigate to "Material > Change".
  • Remove the filament and select "Cancel".

2. Set nozzle temperature

  • On the Ultimaker 2+, navigate to "Maintenance > Advanced > Heatup nozzle".
  • Rotate the button to set the temperature to 150ºC.

3. Tighten the hot end isolator

  • Take a hex screwdriver and insert it into one of the holes of the hot end isolator.
  • Turn the screwdriver clockwise to tighten the hot end isolator until it can’t turn any further.

4. Insert filament

  • Exit the "Heat up nozzle" screen and scroll down to "Insert filament."
  • Insert the filament in the feeder and load as usual.

Change material
Tighten hot end isolator