2. If the back door can't be opened for a long time when the knob is turned to the stop position, you can turn the knob to any position again. After a few seconds, you will hear the sound of the door lock, and then the door can be opened.
There is also an emergency switch in the lower right corner of the machine. Open the cover outside the drainage pump in the lower right corner and you will see a red plastic line. If the cable is pulled down vertically, you will hear a slight door lock sound, or you can open the door. It should be noted that if there is water in the bucket or the temperature is too high, the door will not open. You need to drain the water in the bucket first, and then use the above method to solve it.