Instructions
Ultimaker 2+ Connect user manual 32
6.1 Error messages
When the printer detects that something is wrong, or when it reads values outside of the allowed range,
an error will occur. The display will give a short description of the detected issue along with its unique
error code. For example:
• Detected nozzle temperature is invalid. Go to ultimaker.com/ER201
Go to the specied page to learn more and for troubleshooting tips.
6.2 Extrusion problems
If the Ultimaker 2+ Connect is not extruding the correct amount of material, or not extruding any material at all,
there can be multiple causes for this. Try the following troubleshooting tips.
Clean the inside of the nozzle
If material does not ow consistently, the nozzle could be clogged with degraded material. In this case, the nozzle
should be cleaned by performing the hot and cold pull method. You can use cleaning lament or PLA for this.
Cleaning lament can be used to clean the nozzle of the Ultimaker 2+ Connect by applying hot and cold pulls.
Hot pulls are used to get the biggest parts of degraded material out of the nozzle and are especially necessary
when the nozzle is clogged. With a cold pull, the remaining small particles will be pulled out, ensuring the nozzle
is completely clean.
A cold pull is also recommended when switching to a dierent material type or when changing the nozzle.
This procedure requires heating up the nozzle. Be careful and do not touch the nozzle. Protective
(thermal) gloves are advised.
Ensure the Ultimaker 2+ Connect is disconnected from the Digital Factory or made unavailable
for new print jobs.
Preparation
1. Start by removing the material. Navigate to Materials → Unload material and remove the spool
2. Place the print head in the front-right corner
3. Remove the clamp clip from the print head, press down on the tube coupling collet and pull the Bowden tube
upwards out of the print head
4. On the display, navigate to Maintenance → Set nozzle temperature
5. Use the controls to set the target temperature to 260 °C for cleaning lament, or 235 ºC for PLA
6. Wait for the nozzle to heat up
Hot pull
Use pliers to hold the material to prevent injury to your hands in case the material breaks.
1. Insert the cleaning lament (or a length of approximately 20 cm of PLA lament) into the print head until you
feel some resistance
2. Hold the lament with pliers and gently apply pressure to the material for ±1 second so that it extrudes from
the nozzle or until it cannot be pushed any further, and directly pull the lament out with a quick, rm pull
3. Cut o the tip of the lament that you have just pulled out
4. Repeat this procedure until there is no more degraded material visible on the tip of the cleaning lament.
5. Insert the lament into the print head again and ush some material through the nozzle