Summary of Samsung Washing Machine Repair; Inspection of Drum Washing Machine Failing to Timely Intake Water
When a washing machine fails to intake water in time, it is generally due to a fault in the water level switch. The structure of the water level switch mainly consists of a base cover, static and moving contact plates, rubber diaphragm, top cover, adjusting screw, adjusting spring, etc. Its working principle is as follows: During the washing state, the bottom of the water level tube is in a closed state while the inlet valve is open. Tap water flows into the water container through the inlet valve, continuously increasing the water volume inside the container. Consequently, the gas pressure within the water level tube also increases. When the water level rises to the pressure value that the rubber diaphragm can withstand, the diaphragm bulges, pushing the top rod to move, causing the normally closed contact in the water level switch to actuate. This cuts off the power supply to the inlet solenoid valve connected in series with the water level switch circuit, thereby stopping the water intake of the washing machine. At the same time, the normally open contact of the water level switch closes, supplying power to the program controller, and the washing machine enters the washing program. After washing, drainage occurs. As the water level decreases, the pressure in the air chamber of the water level switch reduces. When it decreases to a certain value, the rubber diaphragm resets.
If the washing machine cannot timely intake water when repeating washing actions, this is because the damping in the air chamber opening of the water level switch is too high, causing the water level switch to fail to reset in time. The following methods can be used for inspection:
1) Remove the top cover of the washing machine, unscrew the water level switch, and take out the damping plug from the air chamber opening.
2) Use a blade to clean and deepen the air guide groove on the damping.
3) Appropriately cut off some of the upper end of the damping to shorten the air guide stroke.
Source of information: Beijing Samsung Washing Machine After-sales Service Phone http://blog.sina.com.cn/sanxingxiyji.