As the name suggests, the chamber temperature regulator fan is a fan that regulates the temperature inside the chamber. Whether the fan is on or off, and the fan speed, is determined by the detected chamber temperature.
If a warning about the regulator fan pops up on the display screen and checking the connection and environment shows that everything is ok.
Prior to commencing with the process in this guide, please make sure the machine is switched off and that the AMS along with the PTFE tube and filament buffer are removed
Undo the screws at the back of the printer as marked below. There are a total of 14 screws to undo, 10 of them in the first image and 4 in the second image as shown below.
To remove the rear cover, it is important to first pull the left side so that the left belt tension port doesn't get in the way, followed by the right side. Push the PTFE tube outlet inwards to free it from the cover.
Undo the 2 screws located at each side of the excess chute. once done, take out the excess chute.
Disconnect the cable from the connector on the MC (Machine Controller) board, and release the fan cable from the cable clips.
Remove the 4 screws holding the fan in place, you will need a tool (eg. tweezers) to hold the screws from the back in case they fall off.
Remove the chamber temperature regulator fan, and then remove the sponge attached to the fan.
Attach the sponge to the new chamber temperature regulator fan as shown below.
Place the chamber temperature regulator fan with the sponge on the inner shield.
Use the 4 screws to secure the fan in place, remember to use the tweezers to hold the screw in order to lock it in place.
Route the fan cable through the cable clips along the frame and the MC board as shown below, and then connect the cable to the MC board.
Install the excess chute by sliding it back in its position, pay attention to the protruding tabs on both sides of the chute. Finally, secure it in place with 2 screws at each side of the top of the chute.
First, pass through the tube bracket and then secure the right side of the back cover past the right belt tensioner as shown below, followed by the left belt tensioner.
Screw the back panel back on. Take note of the different types of screws (10 and 4) used as pointed out previously
Connect the power cord and turn on the power. Run a Device self-test operation as shown below and if no errors occur, the replacement was successful.
Should you come across any issues, first retrace your steps and check all connections to try again. If problems persist, contact the service team for further assistance.