The automatic washing machine has stopped draining water, and the laundry is floating in the drum like in a swimming pool? Do not rush to call a specialist - in 70% of cases the problem can be solved on your own in 15-30 minutes. This malfunction occurs in all brands: from budget Indesit and Candy up to bonus Bosch and Miele. The main thing is to correctly diagnose the cause.

In most cases, clogs, faulty sensors, or program errors are to blame. But sometimes the problem lies deeper: in a burnt-out pump or control unit. We have collected all possible reasons, why the washing machine does not drain, and detailed instructions on how to fix them. And also tips on how to avoid repeated breakdowns.

If your machine stops with a full tank of water, the first thing to do is disconnect it from the network and do not try to start the drain again - this may worsen the breakdown. Next, follow our step-by-step diagnostics.

1. Clogged drain filter is the most common cause.

In 80% of cases, the water does not drain due to a clogged filter. It is located at the bottom of the machine under the decorative panel (usually on the right) and traps debris: threads, coins, buttons, hair. If the filter is not cleaned for years, it turns into a dense plug.

How to check:

  1. Place a rag or a low tray under the machine - when you open the filter, 0.5-1 liters of water will pour out.
  2. Carefully unscrew the filter cap counterclockwise (on some models Samsung and LG you need to remove the bottom panel first).
  3. Remove the filter and rinse under running water.

Try turning it with pliers through a rag|Apply WD-40 to the threads and wait 10 minutes|Check to see if the filter is blocked by a foreign object (for example, a bra wire)|If all else fails, call a technician to avoid breaking the threads-->

⚠️ Attention: If, when you open the filter, water gushes out in a strong stream, the problem is not in it, but in drain pump or pipe. Immediately turn off the water supply and begin diagnosing these elements.

After cleaning the filter, run the program Rinse + Spin. If the water drains, the problem is solved. If not, we move on.

2. Blockage in the drain hose or sewer

Sometimes debris passes through the filter but gets stuck in the drain hose or sink trap. This happens especially often if the hose is bent at a right angle or has a length of more than 2 meters.

How to check:

  • 🔧 Disconnect the hose from the sewer and lower it into a bucket or sink.
  • 💦 Launch the drain program. If the water comes out, the problem is in the sewer.
  • 🌀 If the water does not drain, clean the hose with a flexible cable or rinse under pressure.

On models Beko and Ariston often clogs siphon valve - a small part where the hose is attached to the machine. It needs to be disassembled and washed.

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To prevent clogs, use special laundry bags for delicate items and check clothing pockets before loading. Coins and keys are the main enemies of the drain system!

3. Malfunction of the drain pump (pump)

If the filter and hose are clean, but there is water in the drum, the pump is to blame. The pump can:

  • 🔌 Burn out due to a power surge (typical for regions with an unstable network).
  • 🌀 Jammed due to debris (hair, threads).
  • 💔 Crack the body (happens after the car freezes at the dacha in winter).

How to diagnose:

  1. Drain the water manually through the emergency hose (usually located next to the filter).
  2. Remove the bottom panel of the machine and find the pump (black or gray part with wires).
  3. Check if the pump impeller rotates manually. If not, the pump is jammed.

⚠️ Attention: On models Siemens and Bosch series i-DOS the pump is integrated with a water level sensor. If the pump burns out, the entire assembly may need to be replaced.

Symptom Probable Cause Remedy
The pump hums, but does not pump water Impeller jammed Disassemble and clean
The pump makes no sound The winding burned out Pump replacement
Water is leaking from under the machine Crack in the pump housing Pump replacement
The machine gives an error E21 (Indesit) or OE (Samsung) Pump or sensor fault Diagnostics with a multimeter

Samsung|LG|Indesit|Bosch|Beko|Ariston|Other-->

4. Damage to the water level sensor (pressostat)

The pressure switch controls the amount of water in the tank. If it fails, the machine “does not understand” that the tank is full and does not give the command to drain. Most often, the sensor membrane breaks or the contacts oxidize.

Signs of a malfunctioning pressure switch:

  • 💧 The machine takes in too much or too little water.
  • 🔄 The washing program freezes at the rinsing stage.
  • 🚨 An error appears on the display E18 (Bosch) or F04 (Ariston).

How to check:

  1. Remove the top cover of the machine (unscrew 2-3 screws from the back).
  2. Find the pressure switch - a small round part with a tube.
  3. Remove the tube and blow it out - if you hear a click, the sensor is working.

If the pressure switch does not click, it needs to be replaced. Cost of a new part: from 500 to 2000 rubles, depending on the model.

5. Problems with the control module (electronics)

If all the mechanical elements are in good working order, but the machine stubbornly does not drain the water, the control board is to blame. This is the most expensive breakdown, but you can diagnose it yourself.

Signs of electronic failure:

  • 📛 The machine produces random errors (E67, F21 etc.).
  • 🔄 Programs launch chaotically or are reset.
  • 💡 Lights flash for no reason.

What to do:

  1. Unplug the machine for 10 minutes - sometimes rebooting helps.
  2. Check the contacts on the board (oxidation, burnt tracks).
  3. If you have a soldering iron, solder suspicious areas.

⚠️ Attention: On typewriters Miele and AEG The control module often fails due to voltage surges. If you have an unstable network, connect your equipment through a stabilizer.

How to reset an error on a washing machine

On most models, the error can be reset by simultaneously pressing and holding the button for 3-5 seconds Start/Pause and Cancel/Reset. On typewriters LG To reset, turn off the power, then press and hold Start when connected to the network.

6. Blockage in the pipe between the tank and the pump

The pipe is a flexible tube that connects the machine tank to the pump. Over time, it becomes clogged with dirt, powder deposits or small objects. Unlike the filter, the pipe becomes clogged less often, but it is more difficult to clean.

How to clean the pipe:

  1. Drain the water through the emergency hose.
  2. Unscrew the pump mounts and carefully remove the pipe.
  3. Rinse it under high pressure water or clean it with a brush.

On models Candy and Zanussi The pipe often cracks due to vibrations. If you find cracks, replace the part (cost: 300-800 rubles).

7. Malfunction of the manhole cover or UBL (locking device)

If the machine does not drain water and the hatch does not open, the problem may be UBL (hatch locking device). It locks the door during washing and unlocks after the end of the program. If the UBL breaks down, the machine “thinks” that the hatch is open and does not start draining.

Signs of UBL malfunction:

  • 🔒 The hatch does not open even after turning off the power.
  • 💡 The lock indicator flashes on the display.
  • 🚨 The machine gives an error E61 (Indesit) or DE (Samsung).

How to fix:

  1. Unplug the machine for 1 minute - sometimes rebooting helps.
  2. If it doesn’t help, remove the top panel and find the UBL (located next to the hatch lock).
  3. Check the contacts with a multimeter. Resistance of a working UBL: 0-50 Ohm.
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If the UBL burns out, do not try to repair it - it is dangerous! Replace the part with a new one (cost: 800-2500 rubles depending on the model).

8. Program errors or firmware failure

Sometimes the machine does not drain water due to a software glitch. This can happen after a power surge, improper shutdown, or firmware update.

How to fix:

  • 🔄 Reset the settings (instructions are in the manual for your model).
  • 📥 Reflash the control module (special cable and software required).
  • 🛠️ Update the firmware via the service menu (relevant for Samsung and LG with Smart Diagnostics function).

On typewriters Bosch series Logixx and Maxx The reset is done like this: 

1. Turn on the machine.

2. Press and hold the "Spin Speed" button.


3. Turn the program dial to "30°C".


4. Release the button - the machine will reboot.

If the problem persists after resetting, contact the service center. It may be necessary to reflash or replace the module.

FAQ: Frequently asked questions about draining water in a washing machine

The machine does not drain water, but makes a humming noise. What to do?

A humming sound indicates that the pump is running but cannot pump water. Reasons:

  • There is a blockage in the filter or pipe.
  • The pump impeller is jammed.
  • A foreign object (such as socks or underwear) has entered the hose.

Turn off the machine, drain the water manually and check all elements of the drainage system.

Is it possible to drain water without a filter?

Yes, through the emergency hose. It is located next to the filter (usually at the bottom right) and is closed with a plug. Place the container, remove the cap and wait until the water drains. On some models (Electrolux, AEG) the emergency hose is hidden behind the bottom panel.

Why doesn't the machine drain the water during the spin cycle?

This is a common problem with top loading machines (Ardo, Whirlpool). Reasons:

  • Defective tachogenerator (speed sensor).
  • Burnt out triac on the control board.
  • There is a blockage in the pipe between the tank and the pump.

Try running the program Drain only. If it doesn't help, you need diagnostics.

How much does it cost to repair if the machine does not drain water?

The cost depends on the reason:

  • Cleaning the filter/pipe: 500-1500 rub. (if you call a specialist).
  • Pump replacement: 1500-4000 rub. (including part).
  • Repair of control board: 2000-6000 rub.
  • Replacing a pressure switch or UBL: 1000-3000 rubles.

Self-repair will cost only the cost of spare parts.

How to prevent blockages in the future?

Prevention:

  • 🧦 Wash items with zippers and buttons in special bags.
  • 🧼 Use liquid detergents - they leave less residue.
  • 🔄 Run the program once every 3 months Cleaning the drum (available on Bosch, Siemens, LG).
  • 💧 Clean the filter and rinse the hose every six months.