On Wash & Cure 3 Max, the "E11" error was triggered by the liquid level sensor detecting that there was no water in the bucket or no cleaning agent in the cleaning agent bucket, resulting in the display of this error message on the screen. The possible causes of this problem include the water pipe connected to the bucket cover not being properly connected, the liquid level sensor being loosely connected or the sensor being damaged.
Since this error occurred during the cleaning process, we suggest removing the lid of the water bucket and adding water, then pressing the "START/PAUSE" button to check if the machine has resumed the previous process. If the device still fails to operate, please try adding cleaning agent to the detergent bucket and then press the "START/PAUSE" button to continue working.
Open the LIDS of the clean water bucket and the detergent bucket, and check if there are aluminum tubes and filters on the bucket LIDS.
Please first press the safety valve on the bucket cover of the fixed water pipe, remove the water pipe and reinstall it. Then press the safety valve on the bucket cover that fixes the aluminum tube, remove the aluminum tube and reinstall it.
First, open the cover of the machine, and remove the cleaning basket and the model. After starting the printer, there will be a red indicator light near the filter in the work bucket. Touch with your hand and observe whether the indicator light goes off.
If the indicator light does not go out, it indicates that there might be a problem with the liquid level sensor. Please refer to the following document to disassemble the base and reinsert the liquid level sensor cable, and check whether the indicator light goes off when touched. If the indicator light still does not go out after replugging, please replace the liquid level sensor.
Wash&Cure 3 Max- Liquid Level Sensor Replacement Guide