User Manual
29 January 2018
19
FELIX Pro 2
www.FELIXprinters.com
Trouble shooting
Filament attracts a lot of dust, which can potentially all come into the hot-end. In some dusty environments this could
cause a clogged hot-end within a few hours.
Fragment of previously printed material still in extruder.
If you print a material with a high melting temperature and next a material with a low melting temperature, it may be
that a residue of the high melting temperature plastic causes issues inside the extruder. Try extruding some (20 cm)
PLA filament manually at high temperature (220 °C). Make sure to turn back the temperature to normal while slowly
extruding some more material to prevent it to coal inside the extruder.
Clog from the inside of the hot-end.
It could be that a big dust particle or debris buildup inside the hot-end tip causes clogging from the inside.
You could try the dip-and-pull method:
Insert PLA in the hot end. Heat the hot end to about 220°C. Try to extrude some material.Set the hot end temperature
to 80°C. Disable stepper motors (can be done via the Quick settings menu on the printer itself). Wait for the extruder
to reach the set temperature. Pull out the filament in one smooth and steady movement. Most times the clogging
material is attached to the solidified end of the filament.
If that fails, you can try hand-drilling the nozzle opening with a drill that matches your nozzle diameter. The best is to
do this when the extruder is warm, but be careful! We sell some small diameter drills in our web shop.
Hot-end parts are not fixed together properly.
This could cause buildup of filament in some internal cavities/edges.
Heater decoupled / DEF / DEC message on screen
This error presents itself when a part of the heater circuit is not working.
It can generally be caused by one of the following things:
Bad electrical connection with the hot end cartridge.
The white big connector of the hot end should be plugged all the way onto the printed circuit board on the print head.
If you get the error, please try to pull off the connector sideways and then plug it back on firmly.
Please note: the connector also can be plugged on back to front. This does not damage anything, but it will not work
either.
Turn off and on the printer to reset it after the hot end has been reconnected.
The heater cartridge/thermistor (= temperature sensor) is not mounted right
A bad thermal contact between components and aluminum body can cause the printer to detect that the temperature
is rising too slow to be credible.
Solution: tighten set screws that fix the heater cartridge and/or the thermistor.
Be a bit careful with the thermistor set screw, overtightening it may damage the thermistor.
The heater cartridge is broken.
The printer detects that the temperature does not rise when the heater is activated.
Solution: replace the thermistor/heater set.
The thermistor is broken.
