The washing machine does not drain water: reasons and what to do to repair it

Have you started the wash, but upon completion you find that the laundry is wet and there is water in the drum? Or is the machine stuck at the “Drain” stage, making a buzzing sound, but the water does not drain? This problem is familiar to many washing machine owners. LG, Samsung, Indesit and other brands. In 80% of cases, the malfunction can be fixed on your own - without calling a technician and costly repairs.

In this article we will analyze all possible reasons, why the automatic washing machine does not drain the water: from a banal blockage to a breakdown of the electronic module. You will learn how to diagnose a problem based on symptoms (is the pump noisy, is there an error on the display), what tools are needed for repairs, and when it is really worth contacting a service center. We also collected step by step instructions with photos and videos that will help even a beginner cope with a breakdown.

Spoiler: half the cases are to blame drain filter clogged or hose - cleaning them takes 10-15 minutes. But if the machine does not drain the water and at the same time does not make any sounds (no pump hum), the problem may lie in the electronics or a burnt out pump. Read on to pinpoint the source of the problem.

1. Clogged drain filter is the most common cause.

The coarse filter is located at the bottom of the washing machine (usually under the decorative panel) and traps lint, threads, coins and other debris. Over time, it becomes clogged and the water stops draining. Symptoms: the machine hums and tries to drain the water, but the process is delayed or interrupted with an error (for example, E2 at Bosch, 4E at Samsung).

How to clean the filter:

• 🔧 Unplug the machine and turn off the water.
• 🧽 Place a container (basin or bucket) - when you open the filter, 0.5–1 liters of water will pour out.
• 🔄 Turn the filter cover counterclockwise and pull it out. Rinse under running water.
• 🔍 Check the hole in the machine for foreign objects (buttons, bra underwire).

After cleaning, replace the filter and run a test wash without laundry. If the water drains normally, the problem is solved. If not, move on to the next step.

2. Problems with the drain hose

The drain hose may be kinked, clogged, or connected incorrectly to the drain. Signs:

• 💦 The water leaves very slowly or not completely.
• 🔊 The machine makes gurgling sounds when draining.
• 🚫 A type error appears on the display OE (LG) or F03 (Indesit).

What to do:

1. Disconnect the hose from the sewer and check it for kinks. It should lie flat, without kinks.
2. Blow out the hose or rinse it with water pressure (you can use a watering hose).
3. Make sure that the height of the hose connection to the sewer does not exceed 60–80 cm (for most models). If the hose is connected too high, the pump cannot overcome the resistance.

How to check a hose for blockage without disconnecting it?

Start the "Drain" or "Spin" program. If the water starts to drain, but then the process stops, the blockage is in the hose. If the water does not drain away at all, the problem is in the filter or pump.

If the hose is clean and connected correctly, but the water still does not drain, you need to look deeper for the reason.

3. Malfunction of the drain pump (pump)

The pump is the “heart” of the drainage system. It may fail due to:

• 🔋 Winding burnout (the machine does not make any sounds when draining).
• 🛠 Wear of the impeller (the pump hums, but the water does not drain).
• 💥 Foreign objects (coins, buttons) getting into the mechanism.

How to diagnose a pump failure:

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 plastic block with wires).
3. Check whether the pump impeller rotates by hand. If not, the pump is jammed.
4. Test the winding with a multimeter (resistance should be 150–200 Ohms). If the device shows a break, the pump has burned out.

Take a photo of the wire connection|Unplug the machine|Prepare a basin for the remaining water|Buy a pump for your model (check the article number)|Use a Phillips screwdriver-->

The cost of a new pump is from 1,500 to 4,000 rubles, depending on the model. Replacement takes 30–60 minutes. If you are not confident in your abilities, it is better to contact a specialist - incorrect installation can lead to leaks.

4. Damage to the pressure switch (water level sensor)

The pressure switch (water level sensor) tells the electronic module how much water is in the tank. If it breaks, the machine “does not understand” that it is time to drain the water, and the program freezes. Symptoms:

• 🔄 The machine takes in water, washes, but does not drain or spin.
• 💡 An error flashes on the display F04 (Indesit), E18 (Bosch) or similar.
• 🔊 There is no sound of pump operation.

How to check the pressure switch:

1. Remove the top cover of the machine (unscrew 2-3 screws from the back).
2. Find the pressure switch - a small round piece with a tube connected to the electronic module.
3. Remove the tube and blow it out. If you hear a click, the sensor is working. If not, replacement is required.

Yes, there is an error on the display|No, it just doesn’t drain|I don’t know, there’s no display|Another problem-->

The cost of a new pressure switch is from 800 to 2,500 rubles. Replacement is simple, but requires care when connecting the tube.

5. Electronic module (control board) failure

If all mechanical parts are in good working order, but the machine still does not drain water, the problem may be electronic module. This is the “brain” of the washing machine, which controls all processes. Signs:

• 🔧 The machine turns on, but does not respond to commands (does not start draining).
• 💡 Random errors appear on the display or the program gets confused.
• 🔌 After rebooting (unplugging) the problem repeats.

What to do:

1. Unplug the machine for 10–15 minutes (sometimes “rebooting” helps).
2. Check the contacts on the board - they may have oxidized or come off.
3. If you have experience working with electronics, inspect the board for burnt elements (blackened resistors, swollen capacitors).

In some cases, updating the module's firmware (software update) helps, but this requires special equipment and knowledge.

6. Blockage in the sewer or siphon

Sometimes the problem lies not in the machine, but in clogged sewer pipe or a siphon to which the drain hose is connected. Signs:

• 💦 Water does not leave not only from the machine, but also from the sink (if they are connected to the same pipe).
• 🔊 Gurgling or an unpleasant odor is coming from the siphon.
• 🚫 Water from the machine returns back to the drum.

How to clear a clog:

1. Disconnect the drain hose from the sewer and check if water flows from it into the sink or bucket. If yes, there is a blockage in the pipe.
2. Use a plunger or plumbing line to clear the trap.
3. Pour a special pipe cleaner into the drain (for example, Krot or Tiret).

7. Other possible reasons

The following malfunctions are less common:

Reason	Symptoms	Solution
Failure of the heating element	The machine does not heat the water, takes a long time to wash, does not drain	Replacement of the heating element (cost - 1,000–3,000 ₽)
Timer fault	The program freezes at one stage	Repair or replacement of the control module
Wiring problems	The machine turns on every once in a while, there is no response to the buttons	Checking contacts with a multimeter
Engine brush wear	The machine does not spin, hums, but does not rotate the drum	Replacing brushes (cost: 500–1,500 RUR)

If you have ruled out all of the above reasons, but the machine still does not drain water, the problem may be mechanical damage to the tank or other hidden faults. In this case, you cannot do without diagnostics at a service center.

What to do if the water does not drain right now?

If the machine is stuck in water and you need to empty it urgently, follow these instructions:

Unplug the machine|Tilt the machine back (place a towel)|Locate the emergency hose (usually next to the filter)|Drain the water into a basin|Unscrew the filter and check for clogs-->

⚠️ Attention: Do not try to tilt the machine too much as this may damage the counterweights or shock absorbers. If the water does not drain through the emergency hose, carefully unscrew the filter, but be prepared for a flood!

After draining the water, check the drum for foreign objects (especially if you washed clothes with pockets). Often the cause of a clog is coins, paper clips, or even socks caught in the drain system.

FAQ: Frequently asked questions about drainage problems

The machine does not drain the water and does not spin - what is the reason?

Most likely the problem is clogged filter or pump, or broken pressure switch. If the machine hums but does not drain, check the pump. If there is silence, the water level sensor or electronic module is to blame. Start by cleaning the filter (see section 1).

How to reset a drain error on a washing machine?

Disconnect the machine from the network for 10-15 minutes - this will clear the error. If the problem persists after turning it on, the error is not accidental. Different models have their own reset combinations:

• Samsung: press Drain + Spin for 5 seconds.
• LG: press Start/Pause for 10 seconds.
• Indesit: Turn the program switch to position Drain and hold for 3 seconds.

Is it possible to wash if the machine does not drain water?

No! If the water does not drain, don't launch new programs. This may lead to:

• 💥 Pump overload and breakdown.
• 💦 Leaking and flooding of neighbors.
• 🔋 Damage to the electronic module.

First eliminate the cause of the problem, then check the machine in Quick wash or Rinse + Spin.

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

The cost depends on the reason:

Breakdown	Repair price (₽)
Cleaning the filter	Free (do it yourself)
Pump replacement	1,500–4,000 (part) + 1,000–2,000 (labor)
Replacing the pressure switch	800–2,500 (part) + 800–1,500 (labor)
Electronic module repair	3 000–10 000

At service centers, diagnostics are usually free if you agree to repairs.

How can I prevent drain problems in the future?

Follow these rules:

• 🧺 Check your clothing pockets before washing (coins, paper clips, paper are the main enemies of the drainage system).
• 🧼 Use special bags for washing things with lint (ruglets, woolen products).
• 🔧 Clean the filter once every 3-6 months (depending on the intensity of use).
• 💧 Do not overload the machine - this increases the load on the pump.
• 🔌 Connect the machine to the network through a voltage stabilizer (electricity surges spoil the electronics).