Checking the washing machine pressure switch - level switch

Pressostat for washing machineA pressure switch, also known as a level sensor and level relay, is a part of the washing machine that is responsible for the amount of water poured into the tank. If this spare part fails, the machine is unlikely to be able to carry out washing programs. Since a certain amount of liquid must be poured into them at different stages. Adjusting the amount of water is very important for the operation of the machine.

All automatic machines that are made these days have a level sensor. It can monitor the amount of water in the tank, taking into account the volume of laundry loads.

What is the risk of a malfunctioning pressure switch?

Typically, the malfunction begins to manifest itself in the following ways:

  • The machine takes too much water into the tank.
  • Or, on the contrary, the washing machine fills with very little water.
  • Also, the items being washed may not be wrung out well enough.
  • It is also possible that there is no water in the tank at all, but the washing machine thinks that there is some and turns on the heating element (heating element). When working this way, it can overheat and fail.

Where to buy a level switch?

If you decide to change the level sensor, then it is advisable to use a pressure switch from the same manufacturer as your washing machine as a replacement. In service centers and specialized stores you can find the widest range of various parts.

If there is no spare part in stock, you can place a purchase to order. In this case, you will have to wait some time until it is delivered from the warehouse or the manufacturer's factory. There are many brands producing household appliances of this type on the modern market:

  • Ariston,
  • Siemens,
  • Indesit,
  • Bosch,
  • Hansa,
  • Zanussi,
  • Daewoo,
  • LG,
  • Kandy,
  • Atlant,
  • And others.

And all these manufacturers have their own factories and service centers that deal with issues related to washing machines of their brands. Don’t worry, if your machine is more or less modern, then the part for it can be found.

There are also different level sensor options for different series of household appliances. The types of these sensors differ in functional features. One of the most commonly used level relay options is a three-pin one. A two-chamber water level sensor is not so common.

In order to purchase exactly the pressure switch that is suitable for your machine, you will need to remember (or write down) the manufacturer and the name of the series.

How to check the water level sensor?

Washing machine level sensorIn order to check the functionality of the water level sensor relay, it is necessary to disconnect the hose. To do this you will need to get to the pressure switch. Turn off the power first. That is, unplug the plug from the socket. Then you need to remove the upper part of the washing machine body. It is also called a lid. The cover is secured with two screws on the back of the machine. After unscrewing them, you will need to slightly push the cover from the front side of the machine back. After this, it can be easily removed. For most washing machines, the pressure switch is located on one of the walls of the washing machine close to its top.

Once you get to the level sensor, you will need to disconnect it from the hose. The hose is secured with a clamp. The clamp can be removed using pliers or simply by hand. In place of this hose, you should attach a small hose that you prepared in advance. Then try blowing into it.But not much.

You may hear a clicking sound when the contacts engage. The number of clicks will depend on how many water levels your washing machine provides for different programs.

You should also examine the tubes and make sure they are not damaged. If any damage occurs, the tubes must be replaced. Also carefully inspect the contacts of the water level switch. If they are dirty, they should be cleaned. If they are stuck, then the best option would be to install a new level sensor.

If the pressure switch is faulty, it is easier to replace it. Moreover, a new one is usually quite inexpensive. And the replacement itself is very simple. To make it easier for you, we have added a video about replacing the pressure switch yourself:

   

72 reader comments

  1. Gravatar Anatoly Anatoly:

    The cause of error F08 turned out to be a malfunction of the input capacitor unit on the power cord.

  2. Gravatar Asel Asel:

    What does E2.E9 mean? On a daewoo dwc-1212 washing machine? And how can I fix this?

  3. Gravatar Nikolay Nikolai:

    Dear, the Candy C2 085R washing machine goes to the drain in any program, the level sensor is blowing, the contacts are clicking, what other malfunctions could there be associated with constant draining, in absolutely any program? Thank you in advance!

    • Gravatar Dmitry Dmitriy:

      This is a board fault.

    • Gravatar Andrey Andrey:

      By default, the water drainage hose is attached to the back wall of the machine in the form of a loop. There is no need to unscrew it and put it on the floor. Often this is the simple reason for the constant draining of water during any program.

    • Gravatar Ivan Ivan:

      If water is constantly drained, the semistor that turns on the pump may be broken. Once I was faced with the fact that the drain was due to a dirty contact of the door lock (a very old indesite without displays and self-diagnosis).

    • Gravatar Mikhail Michael:

      It is necessary to look at the board, because the signal comes from it.

  4. Gravatar Alexey Alexei:

    The pressure switch clicks for the first time (should stop the water supply), but this does not happen. When the pressure increases, it clicks a second time and the water drain valve opens. The water is drained and refilled.

    • Gravatar Misha Misha:

      The pressure switch is faulty, replace it

    • Gravatar Sergey Sergey:

      Look and check the wires from the level sensor to the power module connector. Or picking the latter. Or the pressure switch needs to be replaced.

  5. Gravatar Ivan Ivan:

    I removed the pressure switch from the LG, when I shake it, something rattles inside???

  6. Gravatar Sergey Sergey:

    Hello. The Gorenje WS43121 washing machine does not always fill the water level in the tank. Simultaneously with the collection of water, the drain occurs. The program does not start, there is no spin. Sometimes, instead of smoothly rotating in one direction or the other, the engine jerks sharply and stops. The display shows either error 3 or error 4. I removed and checked the pressure switch. When you blow into the pressure switch fitting you hear a click, when you stop blowing you hear another click. Is the pressure switch intact and where to look for a fault?

  7. Gravatar Arthur Arthur:

    Tell me, the water in the washing machine does not heat up, the heating element was replaced, the program runs as usual but the water does not heat up

    • Gravatar Vladimir Vladimir:

      Water temperature sensor or module.

  8. Gravatar Sergey Vas Sergey Vas:

    Do all recommendations apply to the same type of pressure switch? There is a pressure switch of another type (for example, the SM “VEKO”). As it seems to me, its contacts do not close.

  9. Gravatar Denis Denis:

    The washing machine does not rinse well. Even after 5 washes. There is still a lot of foam left, the pump is new, the hoses are not clogged, is it possible that the problem is due to the pressure switch???

    • Gravatar Ivan Ivan:

      A lot of powder and infrequent cleaning is the reason. You have a lot of deposits from the powder, and even if you run the wash without powder, a lot of foam will come from these deposits. Try triple cleaning cycle 1) wash cycle without laundry, no rinse instead of powder 1/2 pack of soda. 2) the same cycle, but instead of powder, citric acid (dissolve 3 small bags in a liter of boiling water) 3) again a cycle with rinsing, instead of powder, 1/2 soda (remove residual acidity after lemon). Soda pre-looses deposits, making them porous and improving acid solubility. All professional products for removing deposits are made on the basis of soda, but are several times more expensive. Cleaning cycles should not be done too often, 1-2 times a year.

    • Gravatar Master Master:

      If the SMA does not rinse well, especially since you write about a large amount of foam, then most likely you have a low-quality powder or you are pouring too much powder, since the powder for SMA contains an antifoaming agent.To avoid excessive foaming, since excess foam at high drum rotation speeds can get on the control board and other parts of the machine that are under voltage. Therefore, you should first of all reduce the dosage of washing powder to a minimum. But if in this case there is a lot of foam, it means you bought a low-quality powder or it is for hand washing.

    • Gravatar Vladimir Vladimir:

      Yes, perhaps a pressure switch, and also due to the program.

  10. Gravatar Yuri Yuri:

    Good afternoon When you turn on the Hotpoint Ariston ARMXXD 1297 CM with drying for 2-3 seconds, water begins to collect and the drum rotates. Then the indicators of all the buttons on the bottom row flash on the display and error F08 lights up. The drum stops, but the sound of the program is still running. This happens in all modes, including drying. The malfunction appeared while washing the down jacket with shampoo. There was a lot of foam. Maybe this is the reason? Thank you!

    • Gravatar Ivan Ivan:

      The Indesites (Ariston is also an Indesit) have bad electronics. This error can be shown either due to faulty filter capacitors, or due to a boost pump, or even due to a software failure. A control module without galvanic isolation from the network + 50Hz clock synchronization from the network... This electronic nonsense is also sold at an inadequate price! In general, Italians are good at making money on unknowing buyers.

      • Gravatar Sergey Sergey:

        Check the heating element for leaks.

  11. Gravatar Vladimir Vladimir:

    Good afternoon Please tell me, my grandmother has the car, she’s very used to it, she doesn’t want a new one. The standard car is Zanussi IZ-12. With JetSistem. Problem: at the beginning of the wash, it usually first drains the remaining water, then starts to collect.This is how everything happens before the water starts to collect. The pump works, but there is no water and that’s why it’s probably humming. He pumps it all up like this for about a minute and then the machine freezes and goes into pause mode. It doesn't give any error. But, thanks to the Internet, I found a diagnostic method. At the final stage, it generated error E33, which means a malfunction of the water level sensors. What's next? What should I do? Yes, the car is also in a distant suburb. Thank you!

    • Gravatar Ivan Ivan:

      Try cleaning the pipe leading to the pressure switch. If the pressure switch is contact, ring the contacts by applying pressure to it (you can use air from a large syringe through the hose from the dropper). Check wire connections. If everything is in order, then the control module probably does not detect the operation of an empty tank.

  12. Gravatar Natalia Natalia:

    Hello. Please tell me, the Candy goy1050 machine shows F02, fills water without stopping, and does not start washing. What should I do? Thank you

    • Gravatar Sergey Sergey:

      F02 – Problems with the tachogenerator or electrical controller. The signal from one does not reach the other.

    • Gravatar Ivan Ivan:

      Most likely, the engine brushes are worn out, as a result of which the engine does not gain speed. The machine recognizes this as a malfunction of the speed sensor (tachogenerator). Proper replacement of brushes will cure this problem 90%. There may also be problems with the tachogenerator. Start with the brushes (a set costs about 150 rubles), cleaning the contact pads of the rotor and washing off the remaining graphite dust with a hard paint brush dipped in acetone (just do not fill the windings with acetone), then with a strip of sandpaper “zero” turned towards the brushes, run in the surface of the new brushes . If after this the error does not go away, change the tachometer.

      • Gravatar Konstantin Konstantin:

        What do brushes have to do with it, if a person says that the machine takes on water without stopping. Pressostat.

  13. Gravatar Mikhail Michael:

    Hello, please tell me, the machine does not take in enough water when washing. Is it possible to adjust somehow? Thank you.

  14. Vital's Gravatar Vitalya:

    Please tell me that the drain pump does not work while you drain some water. how to fix this? LG machine.

  15. Gravatar Sergey Sergey:

    Hello. Please tell me how to solve the problem? The LG WD-80154N washing machine has been serving faithfully for more than 10 years (only the pump and heater were replaced), but recently a problem has arisen: when there are about 3 minutes left until the end of the cycle, the timer returns to 13 minutes and drains and adds water at the same time . The machine hums, but the drum does not rotate. You have to unplug it and take out the laundry without being completely wrung out. How to fix the problem, tell me if you can? Thank you in advance.

    • Gravatar Vitaly Vitaly:

      I have the same machine, the problem is it can’t finish the wash. The pump pumps out water for a very long time and the timer freezes at the 3 minute mark, most likely the pressure switch is faulty, I’ll have a look.

  16. Gravatar Alexey Alexei:

    Hello, Ariston ATD 104 machine. Error F-08 when washing and even just in spin mode. Tell me, please, what is this?

  17. Gravatar Dmitry Dmitriy:

    Hello. Please tell me, the Indesit machine first washes normally, reaches the rinse mode and stops. Shows error f10. Thank you in advance!

  18. Gravatar Alexander Alexander:

    Good afternoon, please tell me, Kandy’s machine fills with water up to the drum and stops.And you hear a sound as if something is spinning inside. Doesn't do anything else. What is this?

  19. Gravatar Elena Elena:

    Please tell me. On the washing machine, when plugged into the socket, after half a minute, two lights flash - a delay timer and a quick wash, and then start. Did I understand correctly that this is an F10 error? Machine Ariston AVSL109R. Is it the level sensor? When starting, it makes noise (as if it is pouring and draining), but there is no water and the drum does not spin, it jerks and that’s it. I poured water separately and it drained normally.

  20. Gravatar Ibo For:

    OE error on LG what should I do?

  21. Gravatar Anonymous Anonymously:

    How can I check the pressure switch? And he clicked only once. Does it work or not?

  22. Gravatar Alexander Alexander:

    An old Samsung machine draws water normally, washes normally, rinses normally, although it can rinse once, or maybe three. But the spin doesn’t turn on, although some processes are happening inside, then it freezes. If after that I only turn on the spin cycle, it hangs immediately. I cleaned all the hoses, checked the pump, removed the pressure meter, it seemed to be working, because during washing and rinsing the water is drained and filled, but why does it fail during the spin cycle? Still, I suspect a water level sensor, right? I will be grateful for your answer.

    • Gravatar Andrey Andrey:

      I have the same problem if the CM is out of level. When the spin starts, it “takes off” and in order not to break the drum, it “hangs”. Try re-leveling the machine.

  23. Gravatar Alexander Alexander:

    Friends, a Miele machine, a pressure switch on the board. Do you need pressurestat parameters or where to buy an analogue?

  24. Gravatar Denis Denis:

    Bosch maxx 5 machine.
    Water does not fill up.
    The car spins dry.
    What could it be?
    The mesh is clean.
    The pressure is good.

    • Gravatar Bogdan Bogdan:

      Valve
      Pressostat
      Control block

  25. Gravatar Alex Alex:

    Indesit 4105, water fills up, immediately drains and all the lights blink. What is this?

    • Gravatar Neighbor Neighbour:

      I also have the same problem with Indesit W181. It picks up and immediately drains, and the mode switch clicks in a circle. So far I can’t understand anything. Have you found the reason?

      • Gravatar kulibik kulibik:

        Same problem! If you put on a wash, water fills up, drains, and all the lights blink. If you set it to rinse, spin or drain, the program is executed, but the same light effect occurs. We have to “wash” it in the rinse mode for now, but we can’t find the problem yet.

      • Gravatar Sergey Sergey:

        Check the bend of the drain hose, at least 90 cm from the floor.

  26. Gravatar Evgeniy Eugene:

    SM LG washes, rinses, but there is no spin when draining the water, there is a grinding sound, checked the pump is clean, the pipes are clean, tested on the panel it shows as if the water in the tank has not been drained, the tank is empty. Is it the pump or the pressure switch that died?

  27. Gravatar Yuri Yuri:

    Samsung WF7520 does not reach maximum spin speed (the engine and tachometer are working properly). The problem is solved by blowing into the pressure switch DN-S14. The tube from the pressure switch into the chamber is also purged. Is that where the problem lies?

  28. Gravatar Valery Valery:

    Friends! Tell me how to solve the problem. Machine Samsung Diamond 6.0 kg. It served for 8 years without any complaints, since my family does a lot of laundry every day and several times. And as it should have been, the bearings wore out. They called a repairman, this monster removed the tank and took it with him.He arrived three days later and said, I replaced the crosspiece, bearings, and oil seal! He took a lot of money from my mother. Okay, I think what happened, happened. We started doing our daily washes and immediately the problems started, error 5d began to appear, approximately towards the end of the wash. This indicates that there is a lot of foam in the machine. But in fact it doesn’t exist. We got used to this kind of washing! But then the noise of the bearings began and the machine began to gallop like a horse. I was fed up with all this and decided to fix what the would-be master couldn’t do. During disassembly, I discovered that he had not changed the crosspiece, replaced only one bearing (the main one), installed the cheapest oil seal, and did not apply lubricant to the seal (judging by the very large wear on the crosspiece axis). In general, I did everything myself: replaced the crosspiece + three mega-expensive bolts, the original oil seal, two bearings! Now the machine works very quietly, but the problem with the 5d remains. Tell me, what could this master have screwed up there? How to fix the problem?

  29. Gravatar Vyacheslav Vyacheslav:

    The machine is SAMSUNG, you add a bucket of water and then pour it out on its own, but it washes normally.

  30. Gravatar Alex Alex:

    The Candy CS 105 TXT machine, a week ago, started giving error 3 when spinning. I cleaned the filter - no result. I replaced the pump - it worked for a couple of days and again error 3. In this case, the main body of water drains, then pumps for a long time and goes into error. When you open the filter, 50-100 ml of water pours out. What could be the problem?

    • Gravatar Victor Victor:

      Good afternoon
      Same problem. what did you find?
      Please tell me!

  31. Gravatar Vladimir Vladimir:

    Good afternoon.Please tell me what is the reason, the Atlant machine pours very little water, washes and rinses almost dry clothes?

  32. Gravatar Nikolay Nikolai:

    LG works well before the drain starts, but when the time comes, a hum occurs and the pump does not turn on. After de-energizing, sometimes multiple times, the pump works and then everything goes as it should until completion or until the next drain. If it does not happen, then the OE error appears after the buzz.

    • Gravatar Evgeniy Eugene:

      Change the drain pump.

  33. Gravatar Fatima Fatima:

    Good afternoon Please help me figure it out! Indesit IWSC 6105. First pause/start flashes, then, after I set the washing program, all programs flash and rinse and spin lights up. But the lock doesn't light up at all, what could it be? The machine worked for a year, then for about two years I didn’t use it at all.

    • Gravatar Mikhail Michael:

      There are two reasons:
      the first one is that the firmware has crashed;
      second - the processor is faulty.
      In the first case, try to reflash it. If it doesn't help, then change the processor.

  34. Gravatar Alexander Alexander:

    Water pumping to Samsung has stopped. The reason is that the wire between the coils on the pump has burned out. Eliminated by soldering. The pump started working, but after the second pumping, a sound like an explosion was heard. The inspection revealed that the winding of the pump coil was burnt out. The coils were replaced with new ones, but no power was supplied. No visually burnt wires were detected. Please tell me what is the reason? Thank you.

  35. Gravatar Valera Valera:

    Hello. Tell me, what is the problem? Ardo washing machine. When you turn on the wash, the machine starts drawing water in pulses. That is, a jet, then no.After a certain period of time. Who can tell me where to dig in terms of repairs?

  36. Gravatar Andrey Andrey:

    Hello! Siemens machine 10-16. When washing it gives error No. 18! I cleaned the drain hose and the pump - it doesn’t help! What to do?

  37. Gravatar Natalia Natalia:

    Hello. Tell me, what is the reason? The machine washes, rinses, fills and drains water, but does not spin. All tubes were checked, the pump was vented and the filter was cleaned. But there is no spin. Machine Zanussi Aquacycle 800 Fa832

  38. Gravatar Sergey Sergey:

    Machine Indesit W105TX. The wash starts, but does not proceed to rinse and spin. Sometimes no program starts at all. Sometimes it washes (does not rinse or spin) and the program knob clicks in a circle. In general, he lives his own life. Tell me, what could be the reason? The machine is old. About 11 years ago.

  39. Gravatar Vladimir Vladimir:

    Hello! Candy Grand Evo machine! It erases, when it comes to spinning it gives error E03 and E16! I checked the pump (it is working). The pressure switch seems to click when you blow into it, I cleaned the hoses and blew out the drain! When the machine was operating, it seemed that it was somehow not filling and draining the water correctly! Even during the drain, there was a buzzing sound in the pump area, but after cleaning it stopped.

  40. Gravatar Egenia Egenia:

    Hello. Machine Hotpoint Ariston ARXL109. It fills in a lot of water and then drains. But sometimes it works correctly, and I try to wash everything. But when rinsing it always works like a clock, without failures. The pressure switch was blown and it clicked. What to do?

  41. Gravatar Roman Novel:

    The washing machine stopped draining and started filling up a lot of water. As always: the verdict of the masters, the fee flew, pressotat. Well, it's simple.You need to check the preostat like this: turn on the machine, disconnect the hose from the preostat and blow on it; if the flow stops, then the wash will begin. This means there is no pressure in the compression chamber. What to do if the tank is not collapsible. Cook 10,000₽, cut, glue. Warranty 3 months, according to the master. I just cleaned the hose, took some wire, cleaned the compressor tank and blew into the hose. The machine started working. That's all I wanted to say.

  42. Gravatar Igor Igor:

    Good afternoon
    Indesit WISE10. I tried everything that was described for problem F05. Doesn't help, i.e. While there is no laundry, the machine fills with water and drains completely. But as soon as you load, even partially, the draining is not performed and the same error appears again. Tell me, maybe not all the causes of the malfunction have been indicated yet? Sincerely.

  43. Gravatar Vladimir Vladimir:

    The DN-S14 pressure switch is a frequency generator. Contacts 1 and 3 supply 5 volts, and contact 3 is a signal when the tank is empty, the frequency is around 26 KHz. The mechanical part is a coil with variable inductance depending on the pressure exerted on the diaphragm. A ferrite core enters the coil.

  44. Gravatar Igor Igor:

    OE error. Machine Samsung WF-S862. It collects water, starts washing and after 3-5 minutes drains the water. OE lights up.

  45. Gravatar Nikita Nikita:

    Good afternoon. Where is the pressure switch on the Electrolux 9120W vertical washing machine?

  46. Gravatar Alexey Alexei:

    Tell me, on a Samsung machine E7 lights up when turned on. What to do?

  47. Gravatar Ivan Ivan:

    Hello, please tell me. You turn on the Indesit machine, as soon as the water is filled, all the buttons light up.

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