¶ Tools:
● M2.5 Allen Wrench
● Multimeter
● Phillips Screwdriver
¶ 1.Poor Contact in Wiring or Harness Connections
Troubleshooting Steps:
¶ Step 1: Turn off the printer
Before troubleshooting, ensure that the printer is turned off and disconnected from power to ensure safe operation.
¶ Step 2: Remove the Mainboard Cover
①Use a M2.5 Allen key to loosen and remove the 4 screws securing the mainboard cover.
②Disconnect the FAN2 fan cable from the mainboard, then set aside the mainboard cover.
¶ Step 3: Remove the Heated Bed Control Board Cover
Use the M2.5 Allen wrench to loosen the 4 screws securing the heated bed control board cover and set it aside.
¶ Step 4: Check for Loose Connections in Heated Bed Control and Heating Wiring
① Please refer to the diagram below and gently tug on the heated bed control cable at the mainboard end to observe if there are any loose or disconnected wires.
② You can also try using a "flathead" screwdriver to loosen the screw that secures the heated bed control cable, then re-tighten it to ensure a secure connection.
③ Please refer to the diagram below and gently tug on the heated bed heating cable at the heated bed control board end to observe if there are any loose or disconnected wires.
④ You can also try using a "flathead" screwdriver to loosen the screw that secures the heated bed heating cable, then re-tighten it to ensure a secure connection.
⑤ Please attempt to disconnect and reconnect the heated bed control cable at the heated bed control board end.
¶ 2.Hardware Malfunction
Troubleshooting Steps:
¶ Step 1: Measure the Voltage at the Heated Bed Control Board during Heating
This troubleshooting step requires some electrical knowledge and measurement equipment. Different brands of multimeters have various measurement ranges, so set the multimeter to the appropriate voltage range.
With the machine powered on, set the multimeter to the 200V DC voltage range. Place the black multimeter probe (negative) on the third screw from the top of the heated bed control board port. Place the red multimeter probe (positive) on the fourth screw from the top of the heated bed control board port. Measure whether the voltage at the mainboard end is 24±2V when heating. If the measured voltage falls within the normal range, it indicates that the heated bed control board is functioning correctly. If the measured voltage is outside the range, it suggests a possible issue with the heated bed control board, and you should consider replacing it.
¶ Step 2: Measure the Voltage at the Mainboard during Heating
With the machine powered on, set the multimeter to the 200V DC voltage range. Place the black multimeter probe (negative) on the fourth screw from the top of the mainboard power line port. Place the red multimeter probe (positive) on the third screw from the top of the mainboard power line port. Measure whether the voltage at the mainboard end is 24±2V when heating. If the measured voltage falls within the normal range, it indicates that the mainboard is functioning correctly. If the measured voltage is outside the range, it suggests a possible issue with the mainboard, and you should consider replacing it.
¶ 3.Other Issues
Troubleshooting Method:
The above troubleshooting methods did not resolve the issue.We recommend that you create an after-sales work order to provide the after-sales engineer with feedback on the previous inspection process and results. The after-sales engineers will assist you in finding a solution to the problem(Reply time :1 working day)
Please click this link to submit your ticket:
After-sales Ticket Submission Page
The assembly method of the above accessories is the reverse of the steps of the removal method.