The reason for this issue with the Wash&Cure Max is that the magnetic induction sensor detects that the machine cover is not closed. Factors that may cause this issue include not closing the machine cover before using the cleaning or curing function, forcibly opening the machine cover during the machine's spraying/curing process, or sensor damage.
● M2.5 Allen key
● M2.0 Allen key
Before using any function, please make sure to check if the machine's cover is closed. If you encounter an "E20" error message during use, immediately check if the cover is closed, and if it's not, close it immediately. The required function can only be started with the machine cover closed. (Please note: In future cleaning or curing operations, ensure that the machine's cover is closed before starting the function; otherwise, the magnetic induction sensor will detect that the cover is open and will not work properly.)
Please do not forcibly open the machine cover during the operation of the function. If you have already forced it open, please close it immediately. The machine will resume operation. (Please note: In future cleaning or curing operations, ensure that you do not forcibly open the machine's cover during function operation; otherwise, the magnetic induction sensor will detect that the cover is open and will not work properly.)
If you really need to check the model during function operation:
During the cleaning process, for your safety and model protection, it is strictly forbidden to forcibly open the machine cover. If you really need to check, you can only stop the process. Click the "CANCEL" button on the display panel, wait for the program to complete (the machine will reset the drainage, which may take up to 4 minutes and 30 seconds, and the machine cover will be locked at this time), and then open the machine cover when the green light in the upper right corner indicates that the door lock is unlocked.
During the curing process, you can first click the "START/PAUSE" pause button on the display panel to pause the machine. When the green light in the upper right corner indicates that the door lock is unlocked, you can open the machine cover to observe the model. After completion, close the machine cover and click "START/PAUSE" again to resume operation.
If you have ensured that the machine cover is closed during function operation but still encounter the "E20" error, then please follow the troubleshooting steps below.
When unplugging the cable, be sure to turn off the machine and unplug the power cord for your safety.
①Use an M2.5 Allen key to unscrew the 4 screws that secure the outer casing of the machine's top cover (1 screw on each side, 2 screws on the back of the outer casing).
②Open the machine cover, lift the top cover from the inside of the working bucket, leaving some gap between it and the outer casing, and then gently pry the top cover from the gap using a tool.
③Refer to the diagram below to unplug the cable connecting the top cover to the mainboard.
④After unplugging the cable, flip the top cover to the left and then change its direction so that the display panel on the top cover faces to the left (Note: at this time, there is still a ground wire connecting between the mainboard and the top cover, please be careful when flipping).
Use an M2.0 Allen key to unscrew the two screws securing the sensor, refer to the diagram below to adjust its position, and then use the same wrench to tighten one screw.
Step 4: Reinstall the Machine Top Cover
①After inserting and unplugging, flip the top cover to the right this time so that the display panel on the top cover faces the front of the outer casing.
②Refer to the diagram below to reconnect the previously unplugged cable from the top cover to the mainboard.
③Install the machine top cover. During installation, you can observe if there is any cable interference between the outer casing and the top cover through the gap. If there is interference, please organize the cable first. Then, the display panel needs to be pressed into place first (please note: during installation, the display panel needs to be closely attached to the outer casing), and then adjust other parts. If you find a significant gap between the display panel and the outer casing, please try reinstalling it. (After installation, there may be some gaps between the outer casing and the machine top cover, which is normal and will not affect subsequent use.)
④Use an M2.5 Allen key to tighten the 4 screws that secure the outer casing of the machine's top cover (1 screw on each side, 2 screws on the back of the outer casing).
The above troubleshooting methods did not resolve the issue.
We recommend that you create an after-sales ticket 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: