Why does the pump in the washing machine break?

How to remove the drain pump

In different models, the way of removing the pump is different. The main ways and which brands are most common:

  • Disassembling the machine through the front panel (LG, Simens, Bosch, machines with aquastop)
  • Through the bottom, with the machine on its side (Indesit, Ariston, Samsung, Ardo)
  • Through the rear lid (Candy, Electrolux, Zanussi)
  • For vertical machines: through the side cover

Through the front panel (LG, Simens, Bosch, machines with aquastop)

  • Remove the detergent and softener container.
  • Remove the top cover. It is usually fastened to the back wall.
  • Take off the control module. Dismantle carefully.

Now you can repair the pump of the washing machine with your own hands. To do this, the clogs are removed or the part is completely replaced.

Through the bottom (Indesit, Ariston, Samsung)

To dismantle the pump through the bottom should:

  • Unplug the machine, disconnect the hoses, lay it on its side
  • Remove the front trim strip behind which the filter cover is concealed
  • Unscrew the two mounting bolts that hold the pump
  • Rotate the pump counterclockwise and remove it from the grooves
  • Unscrew the hose clamps holding the inlet and outlet hose, remove terminals
  • Remove 4 screws that connect pump and filter

Through the rear cover (Candy, Electrolux, Zanussi, Ardo)

Sequence of pump disassembly through the rear panel

  • Unplug the machine, unscrew the filler hose
  • Remove the self-tapping screws that hold the cover around the perimeter
  • Pull the rear lid toward you and remove it
  • Disconnect power to the pump by removing the clamps
  • Tilt the machine, unscrew the 2 screws that hold the pump on the bottom
  • Use pliers to remove the clamps that hold fittings on the pump
  • Remove the drain hose, pull out the pump

Through the side cover (vertical washing machines)

On models with vertical loading, you can reach the pump through the side wall in the following sequence:

  • Disconnect the appliance from all communications, provide access to the technique
  • Remove the fill hose
  • Unscrew the self-tapping screws on the back wall on the edge (in some models the sidewall is still held by fasteners on the front) of the model and remove the panel by pulling it towards yourself
  • Remove the terminals
  • Unscrew the screws that hold the pump

Design and types of pump

Before you start repairing the pump, you need to know what kind it is and how it is arranged.

Depending on the manufacturer and model of the washing machine, the following types of pump are known:

  • Circulation. Used on expensive equipment manufactured by Bosch or Hansa for pumping water during washing.
  • Drain. Used for draining dirty liquid into the sewer. Its capacity can reach 20 liters per minute, and the power. from 20 to 30 watts.

The device drain pump is very simple. It includes a motor with an impeller and a plastic spigot. The latter is fastened to the motor with one side and a drainage filter is installed on the other side. This means that disassembling the pump for cleaning and maintenance will not be difficult.

Repair the pump with your own hands

To perform the repair of the pump by yourself is possible for everyone. It is enough to carefully study the nature of the breakage and equip yourself with the necessary tools.

If the problem was provoked by a burnout of the electrical winding, a complete replacement of the drain pump is needed. In most other situations, it is still possible to restore the function of this important element.

First, you should disassemble the pump housing to clean the impeller and filter. Usually the two halves of the device are fastened to each other with three screws, which can be unscrewed easily.

Coarse debris in the form of hair, threads and clumps of hair can worsen the operation of the mechanism. Accordingly, having found such contamination, it is necessary to remove them immediately. As for the inner surface of the snail, it should be wiped with a wet rag to remove deposits of detergent and rinse aid.

After that, the two halves must be carefully washed with water, preventing the drips from getting into the motor. When finished, you can reassemble the housing, connect the electronic terminals, sockets and install all the parts in their original places.

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To check the operation of the assembled machine, switch on the rinse mode and watch the operation of the drain mechanism. If the problem is not eliminated, the pump will have to be completely replaced with a new one.

One of the many causes of pump malfunctions can be disconnected contacts or faulty sensors. Find the problem area by “testing” the wires with a multimeter.

It is recommended to inspect the integrity of the pump once every three months.

The drain pump in the washing machine does not work

There are several obvious “symptoms” to suspect that the pump in the washing machine is not working. Sometimes the problem is limited to wet things in the drum, and sometimes the dispenser suddenly stops with a full tank of water. In any case, the quality of washing suffers, and the technique threatens to fail completely. The pump is often in fault of the difficult drainage, which needs to be repaired or replaced, but first of all we carry out diagnostics of drainage and clarify the reason of failure.

Why the pump of the washing machine doesn’t work, what to do

Sometimes the owner after the end of the washing machine cycle sees that the laundry is still wet in the tank. The reason in this situation is often a breakdown, when the pump of the washing machine does not work. However, before you change this unit, it is necessary to determine exactly what the problem is.

How to understand that the pump is faulty, the causes of failure?

Before you rush to disassemble the washing machine with your own hands and change the pump, you should accurately determine the cause of the breakdown. It is very possible that the reason is not in the pump, you need to deal with it as thoroughly as possible. Let’s proceed as follows.

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  • First the pump should be listened to.
  • Open the drain filter and clean it if necessary.
  • Check and clean drain hose.
  • Check rotation of pump impeller, maybe it is jammed.
  • Check sensors and contacts going to pump.

Some faults can be quite localized by ear, not being an expert, so go to the washing machine during operation and listen. Wait for the moment when the machine starts to drain or pour water, acting on the program. If the pump buzzes, tries to work intensively, but the water does not flow into the tank or the pump does not make a sound at all. consider that the fault is localized.

After you are satisfied that the pump is not working as it should, you must determine exactly whether it needs to be replaced or whether you can repair it yourself. First of all, open the drain filter and clean it from debris with your own hands.

It is possible that the pump impeller is jammed due to a coin or brassiere bone caught in the filter, so it does not work as it should.

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If cleaning the filter did not help, check the drain hose for blockages. To do this, remove the hose and rinse with a stream of hot water. Put the hose back in place and run a test wash. If the pump continues to “capricious”, then you need to look further.

Next you need to check the rotation of the impeller of the washing machine drain pump. You can get to the impeller even without disassembling the machine, through the drain filter, which must be unscrewed. For more convenience get a flashlight and shine it into the hole from which you unscrewed the plug.

In the hole you will discern the impeller of the pump. Slip your hand into the hole and use your fingers to twist the impeller, checking to see how it works. If the impeller is difficult to rotate, try to feel for foreign objects, which create a hindrance (very often it is threads, lint, wire, etc.). If the impeller rotates freely or the cause of the difficult rotation has not been found, it will have to disassemble the washing machine with their own hands.

Once you get to the pump, check the impeller. If necessary, the drain pump can be dismantled and inspected more carefully. If there are no threads and lint, and the impeller still rotates badly, then the reason is in the mechanism and the pump must be disassembled. If the impeller rotates normally but runs intermittently, the problem is a burnt contact, sensor or control unit.

If everything is checked, but the pump still does not work, then it must definitely be replaced.

Selecting tools and accessories for repair

The composition of the required tools and accessories will depend purely on the nature of the problem, so we will describe the option, which is called, to the maximum, if the pump is all bad. In this case, the repair of the washing machine may require the following components:

  • Drain pump assembly;
  • impeller;
  • shaft;
  • cuff;
  • gasket;
  • pulley;
  • sensor of the drain pump;
  • contacts.

Purchase a new pump and parts for it with caution. It is best to take an old unit, take it to a retail outlet that sells similar products, and a sales consultant will help you make a choice. The same should be done with the components. Bring the pump in a disassembled condition to the store and you will be given the necessary part to it.

Important! If you decide to order parts in the online store, you should look for them by the numbers you need to read on the old pump you removed.

The tools are easier to handle. In most cases you can separate with a Phillips screwdriver and penknife. However, if there is a need to check the functionality of the electrics (sensors, contacts, wiring), you will need to get hold of a multimeter.

Is it possible to prolong the life of the washing machine pump?

Many manufacturers offer their own models of pumps for washing machines. The parts have a different structure. In particular, there are pumps:

One of the main problems that arise during the operation of collapsible and non collapsible pumps in washing machines. contact closure. Failures occur due to water ingress on the surface of the winding, which causes it to burn out. Check the condition of the winding in the pump can be checked with a special screwdriver-tester.

If all is normal, the test will show values in the 180-260 ohm range. A burned-out winding is strongly “tested” and shows higher values.

Another problem that can occur is when the thermal sensor in a pump burns out. It occurs rarely, but in the case of a device failure, it can not be excluded. A burned-out thermal sensor can be repaired without replacing the entire pump. It is replaced with a new one or a jumper.

Pump pumps that are tested with a tester should be replaced. Pump electronics combined with a simister burn out much more often. A similar problem in devices, where the control of electronics is carried out with a relay, occurs very rarely.

What to do if it is broken

How to act if the washing machine does not work the drain and spin, and it stopped with the water? Before the arrival of the master you can drain the water from the machine manually, you need:

  • disconnect the machine from the mains;
  • Prepare an empty container. a basin, a bucket;
  • disconnect the drain hose from the sewage pipe and route the end into a bucket. It is important that the hose is below the level of the washing machine tank. gradually all the water will pour out;
  • You can remove the water through the drain filter in the same way. However, the machine will need to tilt slightly backwards to put a basin under the filter;
  • The easiest way is to drain the water through the emergency drain hose. Unfortunately, this function is not available in all models. The emergency hose is located under the hatch of the drain filter. It is much thinner than normal hoses, so it will take a long time to drain.

After draining the water, you can open the drum, take out the things and entrust the washing machine to the hands of a master.


To find out why the washing machine does not drain the water, you need to check the unit for several parameters. The time spent on searching for the causes of malfunction is compensated by the saving of money on a call to the masters.

How to drain water

To empty the drum, prepare a container to collect the escaping liquid.

It is best to start with the emergency tube, which is located in front of the drain filter. Open the small hatch and slide the drain tube down. The tube is not in every washing machine.

If there is no pipe, go to the drain filter. The drain filter for different brands of washing machines is located in different places. The part can be behind the hatch on the front of the machine or under the housing of the unit. Features of the structure of a particular model are described in the manual.

In the first case, you need to open the square door, unscrew the screw and pull out the filter. The second option is more complicated: before removing the filter, you will have to remove the bottom.

The next step is to drain through the hose. Usually the tube is fixed to the body of the washer vertically. Loosen the fastening clamps and lower the hose into the container to collect water or into the tub.

If gentle methods do not work, you can drain the water through the laundry loading hatch. Turn the washing program off and wait a couple of minutes for the door to unlock. Then open the hatch and be ready for water to flow onto the floor.

Clearing clogs

If the problem is a clogged filter or drain hose, you will need to disconnect them from the body of the machine.

To clean the filter, you need to follow the sequence of actions:

  • Press or unlock the door;
  • unscrew the fastening screw;
  • carefully remove the filter, possibly by picking up the part with a knife or flat screwdriver;
  • hold the filter under the pressure of water.

After cleaning the filter go to the drainage connector. The hose must be removed and do the following:

  • to push the clog through with a wire or metal rope;
  • Pour in the pipe cleaner and let it rest for 10 minutes;
  • Rinse the hose under running water;
  • Replace the spigot.

Once the drain mechanism is unclogged, restart the wash cycle and check that the water flows out.

Reset programs

To eliminate the program error it is necessary to reset the pre-set washing mode. This is done by touching the trigger or pressing the start button on the control panel.

If pressing once doesn’t work, keep the button pressed for a few seconds.

Do not unplug the power cord from the socket. This will not solve the problem: the machine will resume the interrupted programme when plugged in again.

Turning off the power during the washing process can damage the control board.

How to Change a Washing Machine Pump

If you find a faulty part upon inspection, it is worth replacing it with a new one.

To assess the efficiency of the pump will help multimeter.

To check, put the terminals of the device to the pins of the pump wires. If the resistance will show a three-digit number. the part is serviceable. If “0” or “1” appears, it indicates a malfunction. A worn pump will not be able to pump water.

  • Pull out the powder and rinse aid container completely;
  • unscrew the fasteners and remove the panel behind which the pump is located;
  • take a picture of the location of the wires and spigots connected to the pump for easier reassembly;
  • Disconnect the current supply wires to the pump motor;
  • unscrew the fasteners and remove the panel where the pump is located; html;
  • remove the old pump;
  • lead the loop with the wires and spigots to the new part;
  • Assemble the machine;
  • Check by running the wash program.

The control board is a complex microcircuit consisting of tracks, resistors, capacitors and triggers. It is better to entrust the inspection and replacement of the part to professionals of the service center.

Washing machine pump teardown.

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