HMS_0300_0400_0002_0001: The speed of part cooling fan if too slow or stopped
" The speed of part cooling fan if too slow or stopped. It may be stuck or damaged . "
There is a speed feedback signal from the part cooling fan . Normally , when applied a voltage , the fan will perform a corresponding spinning speed , and the printer will check the feedback speed and see if the fan is working normally . If the feedback speed of the cooling fan is slower than designed , this err message will occrus.
Below are the possible reasons :
If the fan is turned on , when cleanning the fan , the fan may started spinning in a sudden and cause injury , so make sure the fan is turned off when start the follwing step.
(a screen picture here , left is the fan on , right is the fan off)
turn off the fan , and spin the fan blade manually , to see if it is stuck by something . If yes , clean up , then turn on the fan again to see if the fan return normal.
If step 1 does not work , then check if the connector is loose . Plug and unplug the front shell connector , then retry turn on the part cooling fan again.
If step 2 still does not work , then it is possible that the part cooling fan is broken. Click here to see how to replace the part cooling fan.