Slide your Cold Section Fan half-way down.
Unscrew the M3 screws on your Wall-E.
Remove the Wall-E
Carefully bend the filament out of the filament path.
Heat the nozzle to 200 C.
Wait for the temperature to reach.
Retract the filament out.
Turn off the nozzle
Wait for the nozzle to cool.
Re-install any missing components in the Wall-E.
Install the Wall-E back into the chassis.
Use the M3 screws to tighten the Wall-E.
Slide you Cold Section Fan back to original position.