Introduction

If your Y-axis hotbed endstop has stopped functioning properly causing crashing, and you’ve confirmed it works with a different board, the PCB needs replacing in the endstop assembly. 

The filament sensor can work as a test as it should use the same connector and signals, simply introduce filament into the filament sensor to test triggering the y-axis.

Required:

Allen key set (comes with printer)

1pcs Replacement Creality endstop board example Manufacturing ID 4004180004

Step 1:

Locate the limit switch (endstop) next to the Y-axis motor behind the bed.

Step 2:

Unscrew the screw holding down the endstop bracket to the base frame of the printer.

Step 3:

Unscrew the two screws holding down the cover for the endstop.

Step 4:

Remove the PCB and replace it with the new one.

Step 5: 

Reassemble the endstop components in reverse order: first securing the PCB, then the cover and bracket.

End of guide.