Unplug the ribbon cables of the filament runout sensor module.
Use tweezers to press down the release tab on the fitting, then pull out the PTFE tube.
Use a 2.0 mm Allen wrench to loosen the 2 screws securing the filament runout detection sensor, then remove the old filament runout sensor module.
¶ Install the New Filament Runout Detection Module
Place the new sensor module in position and use the 2.0 mm Allen wrench to tighten the two screws.
Connect the sensor cable to the new module.
Reinsert the PTFE tube into the fitting.
Power on the printer. Insert filament to verify the sensor LED turns on; remove the filament to confirm the LED turns off. The printer is ready for use.