How to remove the top cover of automatic washing machine?

Take Haier automatic washing machine as an example

The analysis is as follows:

1, use a screwdriver to remove the screws fixing the engine hood.

2. Turn the upper cover backward to see the switch of the upper cover (be careful not to damage the electrical connection between the inside of the upper cover and the lower part of the chassis).

3. Remove the upper cover with a screwdriver.

Extended data:

Working principle of water inlet valve of washing machine

After the clothes are put in, open the faucet valve, select the correct water level and process, turn on the power supply, close the warehouse door, and turn off the door safety switch. At this time, the male * * * contact inside the water level switch is connected with the dehydration contact, and the water inlet valve is electrified to feed water.

When the water level in the bucket reaches the specified height, under the action of air pressure, the male contact inside the water level switch disconnects the dehydration contact and connects the washing contact, and the water inlet valve is powered off to stop water inflow, and the motor power supply is turned on.

The motor starts to run, and it rotates forward and backward periodically, alternating with each other. Impeller is driven by clutch and rotates forward and backward in the same period. The impeller rotating at a certain speed will drive the water and clothes in the bucket to form a rotating water flow, and the clothes will rub against each other in the water flow to achieve the purpose of washing clothes.

When the washing process is completed, the drain solenoid valve is energized to work, the drain valve is opened, the water in the bucket is discharged outwards, and the linkage rod also switches the clutch from the washing state to the dehydration state.

After the drainage is completed, the air pressure in the bucket drops, the male * * * contact of the water level switch is reset, the dehydration contact is turned on, the drainage solenoid valve continues to be energized, and the motor is energized to drive the dehydration bucket to rotate at a high speed to spin clothes. After the laundry procedure, the washing machine stops. As for the number of times and the length of washing in the intermediate process, it is controlled by the program.