How to Replace Creality K1 Series Toolhead PCB

Spare Part: https://store.dremc.com.au/products/creality-k1-toolhead-pcb

TABLE OF CONTENTS

• Video Install Guide
• 111 Error Trouble Shooting
• Written Guide

Video Install Guide:

111 Error Trouble Shooting

• Issues with communication between the main board and the nozzle adapter board.
• Check whether the nozzle drag chain cable is loose or connected in the wrong direction.
• 
• Double check the cable loom, see if you see any crush point or damage wiring loom
• Double check any component is burnt on the toolhead board.
• If you replace the toolhead board and still have error, follow below do points.
• If you have multi meter, double check if get 24v at connector at the toolhead connector (The thicker Black and Red Wire) on the multi meter, if you don't detected 24v, it may be faulty cable loom or faulty cable loom. If you wish to further check if mainboard or cable loom, you need double check the other end of the of cable loom the mainboard. If you don't get 24v from the header of the mainboard it would be faulty mainboard. If you printer is still under warranty, reach out to Creality for warranty or source after warranty parts below.
  • Main Board: K1 Max - https://store.dremc.com.au/products/creality-k1-max-replacement-mainboard-kit / K1 - https://store.dremc.com.au/products/k1-mainboard-kit
  • Cable Loom: K1/K1 Max - https://store.dremc.com.au/products/creality-k1-k1-max-toolhead-wiring / K1C -https://store.dremc.com.au/products/creality-k1c-max-toolhead-wiring

Written Guide:

Source: https://wiki.creality.com/en/k1-flagship-series/k1-max/service-part/nozzle-sub-board-replacement

This is a mirror of above source documentation from Creality, its provided as mirror in case you have difficulty accessing above link. 

1. Turn off the machine and unplug the power cord.

 2. To disconnect the transfer cable terminal on the left side of the nozzle sub-board, use an Wrench  to remove the two securing screws located above the AI Lidar and the two securing screws on the sides of the fan cover.

 3. Remove the fan cover and disconnect the model fan connector.

 4. Using an wrench, remove the three hex screws that secure the nozzle sub-board.

 5. Firstly, remove the stick glue, and disconnect all the wires on the Sub-board.

 6. Remove the fan connector from the old nozzle sub-board, insert the connector into the slot of the new nozzle sub-board with the fan label facing away from the sub-board, aligning it with the fan mounting holes. Insert three screws into the nozzle sub-board and fan mounting holes to secure the nozzle sub-board.

 7. Insert the terminals of the motor wire, ceramic heater ring wire, thermistor wire, Lidar module data transmission cable, and sub-board data transmission cable into their respective slots on the sub-board. Once inserted, use an Wrench to tighten the three nozzle sub-board securing screws.

[Profiler is JST 1.25mm]

 8. Ensure that the terminal positions, orientations, and engagement in the slots on the nozzle sub-board are correct.

 9. Take the fan cover and insert the model cooling fan connector into the corresponding terminal port on the front of the nozzle sub-board. Tighten the two screws on the left and right sides of the fan cover to secure it.

 10. Place the AI Lidar cable into the mounting hole shown in the square of the picture below. The alignment posts at the top of the module must be inserted into the alignment holes on the mounting bracket.