Washing machine repair problem, unable to control the water level.

Under normal circumstances, the water level switch of a microcomputer automatic washing machine has only 2 inserts. When not subjected to water pressure, the contacts of the two tabs are disconnected. After selecting the washing program and selecting the water level, the washing machine begins to work, advanced water, when the water level reaches a certain height, the air pressure in the air chamber of the bucket reaches a certain value, and the air pressure is transmitted to the rubber sealing ring of the water level switch through the air duct, and the force of the spring and torsion spring of the water level switch is overcome to promote the action of the rubber sealing ring, so that the two insert contacts are connected, so that a signal is given to the microcomputer, indicating that the selected water level has been reached.

The same dehydration program is selected, 'after the washing machine is drained, when the water level recedes to a certain height, due to the action of the spring, the rubber sealing ring of the water level switch is restored, and the two contacts are disconnected, giving the microcomputer an action signal, and after a period of drainage, the microcomputer will control the motor to run and start dehydration. Therefore, the maintenance of the water level switch can be carried out according to the following methods:

First of all, select the washing program to see if the water inlet valve stops the water inlet and whether the wave wheel rotates after the water level reaches the selected height. If there is, it means that the water level switch is normal, if it is not rotated, and the water is still entering, then it is necessary to check the air duct to see if there is any air leakage, if there is, it is necessary to find out the cause and repair; If not, the water level switch is not normal, and it can be checked and repaired as follows:

1) Open the control seat, check whether the plug on the water level switch and the plug of the control wire are loose, and the contact is poor, if it is loose, just plug the plug and the plug piece firmly;

2) cut off the power supply, unplug the control wire, measure the resistance value between the two inserts of the water level switch with the resistance gear of the multimeter to judge whether it is on, the conduction is normal, if it is not conductive, it means that the water level switch is not normal, and then check whether the rubber seal of the water level switch is damaged and leaking due to long-term use or its own material problems, if so, it is necessary to replace the new water level switch;

3) Check whether the water level switch control spring is normal, if the spring force is too large, the movement of the rubber sealing ring will be blocked, and can not move, at this time, you can adjust the adjusting screw on it to make it in the correct position.

4) Check whether it is caused by damage to other parts of the water level switch, if it has been damaged, you need to replace the water level switch with a new one. Secondly, choose the degree of dehydration, see if the washing dehydration bucket is running after the water is discharged, if it is running, it means that it is normal, if it is not running, it is possible that the water level switch is faulty, and the two insert contacts are in a normal state, so that the water level switch needs to be checked and repaired or replaced.

For the water level switch of a mechanical automatic washing machine, there are 3 tabs in 2 groups. In the free state, one group is on and the other is off. When the air pressure rubber seal traps the action, the conduction of a group of disconnection, the disconnection of a group of conduction, at this time is normal, the specific inspection method is the same as above.

Friend, after reading your description, I basically know that your water level switch is a mechanical water level pressure switch used in the early days (most of them now use water level electronic sensors). If there is water in the trachea, it must be a trachea leak, and the trachea should be replaced immediately.

Can't control the water level" or "non-stop water inflow" fault?

The former can stop the water, but the water level is not appropriate when it stops; The latter is completely non-stop water and continuous irrigation, which one is it?

Most of the faults of the former are problems with the water level sensor, including the air leakage of the "sausage" connected to it; The latter is more likely to be a motherboard failure.

The water level switch pin and the motherboard wiring are led out separately, make a switch, 2 pins and the motherboard wire when the water in, 3 pins and the motherboard cable when the laundry", it can be seen that the switch relay on the motherboard is faulty, replace the relay of the same model!

Is it an electronic water level switch? Did you change the water level switch correctly, it may not be used if it is not the original model.

The failure of the water level switch of the washing machine is due to the fact that the switch is not easy to use, or the water level does not stop after being turned on. If it's a simple switch that doesn't work, then just change it. If the water level is not good, then you need to change the water level sensor.

If you know how to use electricity, you can buy a sensor and replace it yourself, but it is not recommended that you repair it yourself.

The washing machine water level switch is out of order, how to fix it? Do you want to see that it's **? Is it my sister's occasional or, or is the microcomputer control broken?

If it's a mechanical keyboard, replace it, add it directly, you can replace one, replace a gene, or go to the micro store, replace it, this thing also depends on what kind of washing machine? If you say that your washing machine has been bought for a long time, then you can only get it back and not repair it? If it is inconvenient, then let the maintenance personnel take you to repair it at home, say that you just bought it, you will give the after-sales service **, let the after-sales service solve these problems for you!

1.The water pressure switch gas collection chamber air guide nozzle is blocked or leaking. As long as the debris at the air nozzle is removed; Or seal it with 401 glue at the air leakage. If the air guide hose is aged, kinked, or cracked and leaking, the air guide hose should be replaced.

2.The water pressure switch water level control spring pre-compression is too large. Just unscrew out some of the adjusting screws to reduce the amount of precompression of the water level control spring.

3.The reversing push rod and transmission parts in the water pressure switch are deformed or damaged. It can be solved by repairing the correction, and in severe cases, the water pressure switch should be replaced There are two possibilities for the problem of your washing machine.

The washing machine can't adjust the water level, it may be that the washing machine is broken, you can find a repair to repair it, or it may be that some washing machines themselves are not designed to have this function.

Turn on the power supply and choose to wash, after the water level line reaches the selected height, it is still continuing to enter the water, at this time check whether the lower wave wheel is rotating, if you rotate the chaotic cover, the water level switch is normal, if it does not rotate, it is still entering the water, you also need to check the lower air duct to see if there is air leakage, if it is leaking, you need to find out the cause of maintenance, if there is no air leakage, it means that the switch is not normal.

Solution: 1. Check whether the contact is poor: open the control seat, check whether the plug of the control wire and the water level switch insert are loose, if it is loose and causes poor contact, the plug insert can be inserted firmly;

2. Disconnect the power supply, unplug the control wire, check the resistance value between the two inserts of the water level switch, and use a multimeter.

If it can be conducted, it means that it is normal, if it cannot be conducted, it means that it is not normal, at this time, you need to continue to locate the problem, to see if it is because of the use of too long time or the material problem of the switch itself, resulting in the rubber seal of the water level switch is broken, if so, you can change a water level switch;

3. Check the control spring: if the switch control spring is too large, it will hinder the movement of the rubber sealing ring and cause it to be unable to act.

4. Check other parts, if damaged, they also need to be replaced.

Turn on the power supply and choose to wash, after the water level line reaches the selected height, it is still continuing to enter the water, at this time check whether the lower wave wheel is rotating, if it rotates, the water level switch is normal, if it does not rotate, it is still entering the water, you also need to check the lower air duct to see if there is air leakage, if it is leaking, you need to find out the cause of maintenance, if there is no air leakage, it means that the switch is not chaotic cover normal.

The method of unskinning the sedan chair——

1. Check whether the contact is poor: open the control seat, check whether the plug of the control wire and the water level switch insert are loose, if it is loose and causes poor contact, the plug insert can be inserted firmly;

2. Disconnect the power supply, unplug the control wire, check the resistance value between the two inserts of the water level switch, and measure it with a multimeter.

3. Check the control spring: if the switch control spring is too large, it will hinder the movement of the rubber sealing ring and cause it to be unable to act, at this time, you can adjust the screw and adjust the position normally;

4. Check other parts, if damaged, they also need to be replaced.

Summary. What should I do if the water level of the washing machine cannot be controlled, the general situation is that the valve core of the water inlet valve is stuck, and it cannot be reset after being turned on by power, resulting in water inlet all the time, in this case, replace the water inlet valve first.

If the fault is not solved, the problem lies in the water level switch, after a long period of use, the water level switch can stop the water inlet, causing the water inlet to stop, at this time the water level switch should be replaced.

If the pressure pipe is worn and broken due to long use, or the pressure pipe is in poor contact with the water level switch and the outer barrel air nozzle, or the air leakage caused by disconnection, it can also lead to more than water ingress, because the computer board is misunderstood as the water level is not more than water due to the pressure is not enough, and the water level switch does not work, at this time, the pressure pipe should be checked for wear and whether there is poor contact or disconnection at the two joints.

Due to the use of a long time, there is a foreign body blocking the mouth of the air valve, resulting in the pressure can not be transmitted to the pressure switch, at this time the big nut should be unscrewed, and then take out the inner barrel to take out the foreign body blocking the air valve.

What should I do if the water level of the washing machine cannot be controlled.

What should I do if the water level of the washing machine cannot be controlled, the general situation is that the valve core of the water inlet valve is stuck, and it cannot be reset after the power is turned on, resulting in water ingress all the time, and the water inlet valve is replaced first. If the fault is not solved, the problem lies in the water level switch, after a long period of use, the water level switch can stop the water inlet, causing the water inlet to stop, at this time the water level switch should be replaced. If the pressure pipe is worn and broken due to long use, or the pressure pipe is in poor contact with the water level switch and the air nozzle of the external key barrel, or the air leakage caused by disconnection, it can also lead to more than water ingress, because the computer board is misunderstood as the water level does not stop because the pressure is not enough, and the water level switch does not work, at this time, the pressure pipe should be checked for wear and whether there is poor contact or disconnection between the two joints.

Due to the use of a long time, there is a foreign body blocking the mouth of the air valve, resulting in the pressure can not be transmitted to the pressure switch, at this time the big nut should be unscrewed, and then take out the inner barrel to take out the foreign body blocking the air valve. If all else fails, try replacing the computer board, because all the action is controlled by the computer board. Hope it helps.

Thank you for your answer.

Mine is the lowest water level but it's still the highest water level, what's going on?

Hello dear, the water in the washing machine is always high, this should be the reason why the program was not set up when you started the mold! The washing machine generally has a program setting, how many liters of water are in it, how high the water level is, and there are standard rotten washing, simple washing methods can be selected. Hope it helps.

It's not the reason you said, no matter how you adjust it, it's the same as the highest water level.

It's not the reason you said, no matter how you adjust it, it's the same as the highest water level, so it is recommended that you go to a professional maintenance point for maintenance.

Turn on the power supply and choose to wash, after the water level line reaches the selected height, it is still continuing to enter the water, at this time check whether the lower wave wheel is rotating, if it rotates, the water level switch is normal, if it does not rotate, it is still entering the water, you also need to check the lower air duct to see if there is air leakage, if it is leaking, you need to find out the cause of maintenance, if there is no air leakage, it means that the switch is not chaotic cover normal.

The method of unskinning the sedan chair——

1. Check whether the contact is poor: open the control seat, check whether the plug of the control wire and the water level switch insert are loose, if it is loose and causes poor contact, the plug insert can be inserted firmly;

2. Disconnect the power supply, unplug the control wire, check the resistance value between the two inserts of the water level switch, and measure it with a multimeter.

3. Check the control spring: if the switch control spring is too large, it will hinder the movement of the rubber sealing ring and cause it to be unable to act, at this time, you can adjust the screw and adjust the position normally;

4. Check other parts, if damaged, they also need to be replaced.