The washing machine endlessly washes: 7 reasons and what to do

Have you started the wash, but after an hour or two you realized that the drum is still spinning, the water is not draining, and the timer is stuck in one place? Endless wash cycle - one of the most common malfunctions of washing machines, which can occur in both new models Samsung or LG, and in time-tested Indesit or Bosch. The reasons lie in both minor program failures and serious electronic or mechanical failures.

In this article, we will look at why the washing machine does not stop, how to diagnose the problem yourself, and in what cases you can do without calling a technician. We will pay special attention to models with electronic control - 80% of freezing cases in them are associated with errors in the board or sensors, and not with mechanical malfunctions.

1. Program failure: when electronics are to blame

If your washing machine suddenly starts washing without stopping, first check if this is due to software glitch. Modern models are equipped with microprocessors that sometimes glitch due to power surges, incorrect commands or firmware errors. This happens especially often in machines with a function Smart Control or AI Wash (for example, Samsung WW90T554DAN or LG F4V9RWP2T).

How to recognize a program failure:

• 🔄 The timer on the display “freezes” at one value or is reset.
• 📛 An error code appears on the screen (for example, E1, 4E, UE - depends on the brand).
• 🔌 The machine does not respond to button presses or turns on only after being completely disconnected from the network.

What to do:

1. Unplug the machine from the outlet for 10-15 minutes (this will reset the temporary data in the controller's memory).
2. Switch on again and select a short program (for example, Quick wash 30°).
3. If the problem persists, try updating the firmware (relevant for models with Wi-Fi, for example, Bosch WGG25400).

⚠️ Attention: Do not try to “reflash” the machine yourself if you do not have experience working with service software. Incorrect firmware can completely damage the control module.

2. Malfunction of the water level sensor (pressostat)

Pressostat is a sensor that determines the amount of water in the tank. If it fails, the machine “does not understand” that the tank is already full and continues to draw water or, conversely, does not drain it, cycling the program. Typical symptoms:

• 💧 Water is constantly collected and drained without washing.
• 🌀 The drum spins chaotically, without pauses.
• 📉 An error may appear on the display LE (y LG) or F02 (y Indesit).

How to check the pressure switch:

1. Unplug the machine and remove the top cover (usually secured with 2-3 screws on the back).
2. Find the pressure switch - this is a small round part with a connected tube and wires (usually located on the side of the tank wall).
3. Remove the tube and blow it out - if you hear a click, the sensor is working. If not, replacement is required.

Brand	Pressostat error code	Sensor cost (₽)
Samsung	4E, 4C	800–1 500
LG	LE, PE	1 200–2 000
Indesit/Ariston	F02, F05	600–1 300
Bosch/Siemens	E18, E23	1 500–2 500

3. Clogged drain filter or pump

If the washing machine does not drain water and because of this it cannot complete the cycle, the clog is to blame. Most often they suffer:

• 🧺 Drain filter (located at the bottom of the machines under the hatch).
• 🌀 Pump (pump) - if the filter is clean, but the water does not come out, check the pump impeller for hair, threads or coins.
• 🚿 Drain hose - sometimes gets bent or clogged with debris.

How to clean:

Drain the water manually (through the emergency hose or by tilting the machine)|Open the filter flap and unscrew it counterclockwise|Remove debris from the filter and rinse under running water|Check the pump impeller (it should rotate freely)|Clean the drain hose with a wire or a stream of water-->

If after cleaning the machine still does not drain water, the pump may have burned out. You can check it with a multimeter (winding resistance should be 150–200 Ohms). In models Electrolux and AEG pumps often fail due to manufacturing defects - they are replaced under warranty.

⚠️ Attention: Never start the machine with the filter door open. This may cause leakage and short circuit.

4. Damage to the control module (board)

Control module - This is the “brain” of the washing machine. If it fails, the machine may:

• 🔄 Cycle one program (for example, constantly rinse).
• 📵 Do not respond to buttons or enable random modes.
• 💥 Overheat and shut down with an error HE (y Samsung) or E67 (y Bosch).

Reasons for failure:

• ⚡ Voltage surges (especially relevant for houses with old wiring).
• 💦 Moisture gets on the board (due to leakage or condensation).
• 🕒 Natural wear and tear (module service life is 7–10 years).

What to do:

Repairing the board yourself is only possible if you have soldering equipment and a circuit. In most cases, it is easier to replace the entire module. Cost of a new board:

• Indesit/Ariston: 2 500–4 000 ₽.
• Samsung/LG: 4 000–7 000 ₽.
• Bosch/Siemens: 6 000–10 000 ₽.

How to test a board without a multimeter?

If the machine turns on but does not launch programs, try pressing and holding the button Start/Pause 5–10 seconds. On some models (Candy, Beko) this activates the test mode, where you can see the board's error codes.

5. Faulty heating element or thermistor

If the washing machine heats water endlessly and does not proceed to rinse, the problem may be:

• 🔥 Heating element (heating element) - if it is covered with scale, the water takes too long to heat up, and the machine “freezes” waiting for the desired temperature.
• 🌡️ Thermistor (temperature sensor) - if it is lying, the machine either overheats the water or does not heat it at all.

How to diagnose:

1. Turn off the machine and drain the water.
2. Remove the back panel and locate the heating element (usually at the bottom of the tank).
3. Test the heating element with a multimeter - the resistance should be 20–40 Ohms. If the device shows “1” (open) or “0” (short circuit), the part is faulty.
4. Check the thermistor - its resistance should change when heated (immerse in hot water).

Replacement cost:

• Heating element: 800–2,000 ₽ (depending on the model).
• Thermistor: 300–800 ₽.

6. Door lock problems (UBL)

If the washing machine does not lock the door, it will not start washing or will get stuck in the rinse phase. Symptoms of a problem UBL (hatch blocking devices):

• 🔒 The door does not close until it clicks.
• 🚨 An error appears on the display E:DOOR (y LG) or F:dL (y Indesit).
• 🔄 The machine starts washing, but stops after 2-3 minutes.

How to check:

Turn off the machine, remove the top panel and locate the lock (usually to the right of the door). Check:

• Continuity of the wire going to the UBL.
• The resistance of the lock with a multimeter - in the closed state should be 0 Ohm, in the open state - “1”.
• Mechanical damage to the latch (sometimes it breaks due to the closing force).

UBL replacement cost: RUB 500–1,500. In models Whirlpool and Zanussi Locks often fail due to poor quality plastic.

7. Mechanical failures: bearings, belt, drum

Less commonly, endless washing is associated with mechanical problems:

• 🔗 Torn belt — the drum rotates jerkily or does not rotate at all, but the machine continues to “think” that the wash is in progress.
• ⚙️ Worn bearings - the drum creaks, rattles, and the machine cannot complete the cycle due to an imbalance error (UE at LG, E:UB at Samsung).
• 🌀 Damaged shock absorbers — the drum hits the body, and the machine resets the program.

How to diagnose:

Open the door and try turning the drum by hand. If he:

• 🔄 Rotates too easily - the belt is broken.
• 🔊 Creaks or play - the bearings are worn out.
• 💥 "Falls" down - the shock absorbers are broken.

Repair cost:

• Belt: 300–800 ₽ (replacement + work).
• Bearings: 2,000–5,000 ₽ (complete disassembly of the tank is required).
• Shock absorbers: RUB 1,000–2,500 per pair.

⚠️ Attention: Replacing bearings in machines with a non-separable tank (for example, Samsung EcoBubble) requires sawing and gluing plastic. It's better to leave this to the professionals.

FAQ: Frequently asked questions about endless washing

The machine has been washing for 3 hours, but does not drain the water. What to do?

First, check the drain filter for clogs. If it is clean and the water does not drain, unplug the machine, drain the water manually (through the emergency hose or by tilting the machine) and check the pump. In 70% of cases, the problem is solved by cleaning.

An error appears on the display 4E (Samsung). What does this mean?

Error 4E indicates problems with water collection. Check:

• Water supply tap (possibly closed).
• The hose is kinked or clogged.
• Water level sensor (pressostat).

Can I replace the control module myself?

Theoretically yes, but only if you have experience with electronics. The module requires careful handling - static electricity or incorrect connection of connectors can damage it. For models Bosch and Siemens It’s better to contact the service - their boards are calibrated for a specific machine.

Why is the car stuck on rinsing?

Most often this is due to:

• Clogged drain filter or pump.
• Malfunction of the pressure switch (the machine “does not see” that the water has been drained).
• Program failure (reboot helps).

Try manually draining the water and starting the program again.

How much does diagnostics cost at a service center?

The cost of diagnostics depends on the region and brand:

• Indesit/Ariston: 500–1 000 ₽.
• Samsung/LG: 1 000–1 500 ₽.
• Bosch/Siemens: 1 500–2 500 ₽.

Some services offer free diagnostics if you agree to have them repaired.