In this case, if the display fails, first check whether the power supply of the display is normal (normally it should be 5V). If there is no such voltage, check the circuit components of the display power supply first. There are many common problems in the health pot, but in daily life, if the pot is filled with tap water, don't exceed the highest water level. Then press the function key to adjust to the boiling water state, and you can start boiling water. Honey, the display screen is broken. I suggest you accept it.